Docs: Update for release FEX-2408

Merge pull request #3945 from Sonicadvance1/config_nonnullable
Config: Little assume non-null check
2026-10-07 05:00:16 +02:00 · 2024-08-12 15:05:37 -07:00 · 2024-08-11 15:23:37 -04:00 · 2024-08-11 10:25:53 -07:00 · 2024-08-10 20:07:43 -04:00 · 2024-08-10 09:07:58 -07:00
528 changed files with 258544 additions and 37587 deletions
@@ -13,7 +13,6 @@ env:
  BUILD_TYPE: Release
  CC: clang
  CXX: clang++
-  FEX_ENABLEAVX: 1

 jobs:
  build_plus_test:
@@ -64,7 +63,7 @@ jobs:
      # Note the current convention is to use the -S and -B options here to specify source
      # and build directories, but this is only available with CMake 3.13 and higher.
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DBUILD_FEX_LINUX_TESTS=True -DBUILD_THUNKS=True -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True -DBUILD_FEX_LINUX_TESTS=True -DBUILD_THUNKS=True -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install

    - name: Build
      working-directory: ${{runner.workspace}}/build
@@ -20,7 +20,6 @@ env:
  BUILD_TYPE: Release
  CC: clang
  CXX: clang++
-  FEX_ENABLEAVX: 1

 jobs:
  glibc_fault_test:
@@ -71,7 +70,7 @@ jobs:
      # Note the current convention is to use the -S and -B options here to specify source
      # and build directories, but this is only available with CMake 3.13 and higher.
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DBUILD_FEX_LINUX_TESTS=True -DENABLE_GLIBC_ALLOCATOR_HOOK_FAULT=True -DENABLE_JEMALLOC_GLIBC_ALLOC=False -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True -DBUILD_FEX_LINUX_TESTS=True -DENABLE_GLIBC_ALLOCATOR_HOOK_FAULT=True -DENABLE_JEMALLOC_GLIBC_ALLOC=False -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install

    - name: Build
      working-directory: ${{runner.workspace}}/build
@@ -13,7 +13,6 @@ env:
  BUILD_TYPE: Release
  CC: clang
  CXX: clang++
-  FEX_ENABLEAVX: 1

 jobs:
  hostrunner_tests:
@@ -64,7 +63,7 @@ jobs:
      # Note the current convention is to use the -S and -B options here to specify source
      # and build directories, but this is only available with CMake 3.13 and higher.
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True

    - name: Build
      working-directory: ${{runner.workspace}}/build
@@ -13,7 +13,6 @@ env:
  BUILD_TYPE: Release
  CC: clang
  CXX: clang++
-  FEX_ENABLEAVX: 1

 jobs:
  instcountci_tests:
@@ -74,7 +73,7 @@ jobs:
      # Note the current convention is to use the -S and -B options here to specify source
      # and build directories, but this is only available with CMake 3.13 and higher.
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_VIXL_SIMULATOR=$VIXL_SIM_ENABLED -DENABLE_VIXL_DISASSEMBLER=True -DENABLE_LTO=False -DENABLE_ASSERTIONS=True
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_VIXL_SIMULATOR=$VIXL_SIM_ENABLED -DENABLE_VIXL_DISASSEMBLER=True -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True

    - name: Build
      working-directory: ${{runner.workspace}}/build
@@ -10,14 +10,13 @@ on:

 env:
  BUILD_TYPE: Debug
-  FEX_ENABLEAVX: 1

 jobs:
  mingw_build:
    runs-on: ${{ matrix.arch }}
    strategy:
      matrix:
-        arch: [[self-hosted, ARM64, mingw]]
+        arch: [[self-hosted, ARM64, mingw], [self-hosted, ARM64EC, mingw, ARM64]]
      fail-fast: false

    steps:
@@ -39,6 +38,11 @@ jobs:
      run: |
        echo "MINGW_TRIPLE=aarch64-w64-mingw32" >> $GITHUB_ENV

+    - name: Set CC Arm64EC
+      if: matrix.arch[1] == 'ARM64EC'
+      run: |
+        echo "MINGW_TRIPLE=arm64ec-w64-mingw32" >> $GITHUB_ENV
+
    - name: Set rootfs paths
      run: |
        echo "FEX_ROOTFS_MOUNT=/mnt/AutoNFS/rootfs/" >> $GITHUB_ENV
@@ -74,7 +78,7 @@ jobs:
      # Note the current convention is to use the -S and -B options here to specify source
      # and build directories, but this is only available with CMake 3.13 and higher.
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/toolchain_mingw.cmake -DMINGW_TRIPLE=$MINGW_TRIPLE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DBUILD_TESTS=False -DENABLE_JEMALLOC=False -DENABLE_JEMALLOC_GLIBC_ALLOC=False -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/toolchain_mingw.cmake -DMINGW_TRIPLE=$MINGW_TRIPLE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True -DBUILD_TESTS=False -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install

    - name: Build
      working-directory: ${{runner.workspace}}/build
@@ -13,7 +13,6 @@ env:
  BUILD_TYPE: Release
  CC: clang
  CXX: clang++
-  FEX_ENABLEAVX: 1

 jobs:
  vixl_simulator:
@@ -65,7 +64,7 @@ jobs:
      # Note the current convention is to use the -S and -B options here to specify source
      # and build directories, but this is only available with CMake 3.13 and higher.
      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_VIXL_SIMULATOR=True -DENABLE_VIXL_DISASSEMBLER=True -DENABLE_LTO=False -DENABLE_ASSERTIONS=True
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_VIXL_SIMULATOR=True -DENABLE_VIXL_DISASSEMBLER=True -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True

    - name: Build
      working-directory: ${{runner.workspace}}/build
@@ -73,23 +72,22 @@ jobs:
      # Execute the build.  You can specify a specific target with "--target <NAME>"
      run: cmake --build . --config $BUILD_TYPE

-    - name: ASM Tests
+    - name: ASM Tests - SVE256
      working-directory: ${{runner.workspace}}/build
      shell: bash
      # Execute the unit tests
      run: cmake --build . --config $BUILD_TYPE --target asm_tests

-    - name: ASM Test Results move
+    - name: ASM Test SVE256 Results move
      if: ${{ always() }}
      shell: bash
      working-directory: ${{runner.workspace}}/build
-      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ASM.log || true
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ASM_SVE256Bit.log || true

-    - name: ASM Tests 128-bit
+    - name: ASM Tests - SVE128
      working-directory: ${{runner.workspace}}/build
      shell: bash
      env:
-        FEX_HOSTFEATURES: "disableavx"
        FEX_FORCESVEWIDTH: "128"
      # Execute the unit tests
      run: cmake --build . --config $BUILD_TYPE --target asm_tests
@@ -98,7 +96,21 @@ jobs:
      if: ${{ always() }}
      shell: bash
      working-directory: ${{runner.workspace}}/build
-      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ASM128bit.log || true
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ASM_SVE128Bit.log || true
+
+    - name: ASM Tests - ASIMD
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      env:
+        FEX_HOSTFEATURES: "disablesve"
+      # Execute the unit tests
+      run: cmake --build . --config $BUILD_TYPE --target asm_tests
+
+    - name: ASM Test ASIMD Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ASM_ASIMD.log || true

    - name: Truncate test results
      if: ${{ always() }}
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.14)
-project(FEX)
+project(FEX C CXX ASM)

 INCLUDE (CheckIncludeFiles)
 CHECK_INCLUDE_FILES ("gdb/jit-reader.h" HAVE_GDB_JIT_READER_H)
@@ -15,6 +15,7 @@ option(ENABLE_XRAY "Enable building with LLVM X-Ray" FALSE)
 set(USE_LINKER "" CACHE STRING "Allow overriding the linker path directly")
 option(ENABLE_ASAN "Enables Clang ASAN" FALSE)
 option(ENABLE_TSAN "Enables Clang TSAN" FALSE)
+option(ENABLE_COVERAGE "Enables Coverage" FALSE)
 option(ENABLE_ASSERTIONS "Enables assertions in build" FALSE)
 option(ENABLE_GDB_SYMBOLS "Enables GDBSymbols integration support" ${HAVE_GDB_JIT_READER_H})
 option(ENABLE_STRICT_WERROR "Enables stricter -Werror for CI" FALSE)
@@ -31,6 +32,7 @@ option(COMPILE_VIXL_DISASSEMBLER "Compiles the vixl disassembler in to vixl" FAL
 option(ENABLE_FEXCORE_PROFILER "Enables use of the FEXCore timeline profiling capabilities" FALSE)
 set (FEXCORE_PROFILER_BACKEND "gpuvis" CACHE STRING "Set which backend you want to use for the FEXCore profiler")
 option(ENABLE_GLIBC_ALLOCATOR_HOOK_FAULT "Enables glibc memory allocation hooking with fault for CI testing")
+option(USE_PDB_DEBUGINFO "Builds debug info in PDB format" FALSE)

 set (X86_32_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/toolchain_x86_32.cmake" CACHE FILEPATH "Toolchain file for the (cross-)compiler targeting i686")
 set (X86_64_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/toolchain_x86_64.cmake" CACHE FILEPATH "Toolchain file for the (cross-)compiler targeting x86_64")
@@ -40,7 +42,16 @@ string(FIND ${CMAKE_BASE_NAME} mingw CONTAINS_MINGW)
 if (NOT CONTAINS_MINGW EQUAL -1)
  message (STATUS "Mingw build")
  set (MINGW_BUILD TRUE)
-  set (ENABLE_JEMALLOC FALSE)
+  set (ENABLE_JEMALLOC TRUE)
+  set (ENABLE_JEMALLOC_GLIBC_ALLOC FALSE)
+endif()
+
+if (NOT MINGW_BUILD)
+  message (STATUS "Clang version ${CMAKE_CXX_COMPILER_VERSION}")
+  set (CLANG_MINIMUM_VERSION 12.0)
+  if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${CLANG_MINIMUM_VERSION})
+    message (FATAL_ERROR "Clang version too old for FEX. Need at least ${CLANG_MINIMUM_VERSION} but has ${CMAKE_CXX_COMPILER_VERSION}")
+  endif()
 endif()

 if (ENABLE_FEXCORE_PROFILER)
@@ -110,6 +121,12 @@ else()
 endif()

 if (CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
+  option(ENABLE_X86_HOST_DEBUG "Enables compiling on x86_64 host" FALSE)
+  if (NOT ENABLE_X86_HOST_DEBUG)
+    message(FATAL_ERROR
+    " FEX-Emu doesn't support compiling for x86-64 hosts!"
+    " This is /only/ a supported configuration for FEX CI and nothing else!")
+  endif()
  set(_M_X86_64 1)
  add_definitions(-D_M_X86_64=1)
  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcx16")
@@ -123,9 +140,39 @@ endif()
 if (CMAKE_SYSTEM_PROCESSOR MATCHES "^arm64ec")
  set(_M_ARM_64EC 1)
  add_definitions(-D_M_ARM_64EC=1)
+endif()

-  # Required as FEX is not allowed to lock the CRT heap lock during compilation or callbacks
-  set(ENABLE_JEMALLOC TRUE)
+include(CheckCXXSourceCompiles)
+set(CMAKE_REQUIRED_FLAGS "-std=c++11 -Wattributes -Werror=attributes")
+check_cxx_source_compiles(
+  "
+  __attribute__((preserve_all))
+  int Testy(int a, int b, int c, int d, int e, int f) {
+  return a + b + c + d + e + f;
+  }
+  int main() {
+  return Testy(0, 1, 2, 3, 4, 5);
+  }"
+  HAS_CLANG_PRESERVE_ALL)
+unset(CMAKE_REQUIRED_FLAGS)
+if (HAS_CLANG_PRESERVE_ALL)
+  if (MINGW_BUILD)
+    message(STATUS "Ignoring broken clang::preserve_all support")
+    set(HAS_CLANG_PRESERVE_ALL FALSE)
+  else()
+    message(STATUS "Has clang::preserve_all")
+  endif()
+endif ()
+
+if (_M_ARM_64 AND HAS_CLANG_PRESERVE_ALL)
+  add_definitions("-DFEX_PRESERVE_ALL_ATTR=__attribute__((preserve_all))" "-DFEX_HAS_PRESERVE_ALL_ATTR=1")
+else()
+  add_definitions("-DFEX_PRESERVE_ALL_ATTR=" "-DFEX_HAS_PRESERVE_ALL_ATTR=0")
+endif()
+
+if (ENABLE_VIXL_SIMULATOR)
+  # We can run the simulator on both x86-64 or AArch64 hosts
+  add_definitions(-DVIXL_SIMULATOR=1 -DVIXL_INCLUDE_SIMULATOR_AARCH64=1)
 endif()

 if (ENABLE_CCACHE)
@@ -175,13 +222,18 @@ if (ENABLE_TSAN)
  link_libraries(-fno-omit-frame-pointer -fsanitize=thread)
 endif()

+if (ENABLE_COVERAGE)
+  add_compile_options(-fprofile-instr-generate -fcoverage-mapping)
+  link_libraries(-fprofile-instr-generate -fcoverage-mapping)
+endif()
+
 if (ENABLE_JEMALLOC_GLIBC_ALLOC)
  # The glibc jemalloc subproject which hooks the glibc allocator.
  # Required for thunks to work.
  # All host native libraries will use this allocator, while *most* other FEX internal allocations will use the other jemalloc allocator.
  add_definitions(-DENABLE_JEMALLOC_GLIBC=1)
  add_subdirectory(External/jemalloc_glibc/)
-else()
+elseif (NOT MINGW_BUILD)
  message (STATUS
    " jemalloc glibc allocator disabled!\n"
    " This is not a recommended configuration!\n"
@@ -194,7 +246,7 @@ if (ENABLE_JEMALLOC)
  add_definitions(-DENABLE_JEMALLOC=1)
  add_subdirectory(External/jemalloc/)
  include_directories(External/jemalloc/pregen/include/)
-else()
+elseif (NOT MINGW_BUILD)
  message (STATUS
    " jemalloc disabled!\n"
    " This is not a recommended configuration!\n"
@@ -202,6 +254,11 @@ else()
    " Use at your own risk!")
 endif()

+if (USE_PDB_DEBUGINFO)
+  add_compile_options(-g -gcodeview)
+  add_link_options(-g -Wl,--pdb=)
+endif()
+
 set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -fno-omit-frame-pointer")
 set (CMAKE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_LINKER_FLAGS_RELWITHDEBINFO} -fno-omit-frame-pointer")

@@ -255,8 +312,6 @@ include_directories(External/json-maker/)
 add_subdirectory(External/tiny-json/)
 include_directories(External/tiny-json/)

-include_directories(External/xbyak/)
-
 include_directories(Source/)
 include_directories("${CMAKE_BINARY_DIR}/Source/")

@@ -354,6 +409,14 @@ if (BUILD_TESTS)
  include(CTest)
  enable_testing()
  message(STATUS "Unit tests are enabled")
+
+  set (TEST_JOB_COUNT "" CACHE STRING "Override number of parallel jobs to use while running tests")
+  if (TEST_JOB_COUNT)
+    message(STATUS "Running tests with ${TEST_JOB_COUNT} jobs")
+  elseif(CMAKE_VERSION VERSION_LESS "3.29")
+    execute_process(COMMAND "nproc" OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE TEST_JOB_COUNT)
+  endif()
+  set(TEST_JOB_FLAG "-j${TEST_JOB_COUNT}")
 endif()

 add_subdirectory(FEXHeaderUtils/)
@@ -602,6 +602,18 @@ constexpr bool AreVectorsSequential(T first, const Args&... args) {
  return (fn(first, args) && ...);
 }

+// Returns if the immediate can fit in to add/sub immediate instruction encodings.
+constexpr bool IsImmAddSub(uint64_t imm) {
+  constexpr uint64_t U12Mask = 0xFFF;
+  auto FitsWithin12Bits = [](uint64_t imm) {
+    return (imm & ~U12Mask) == 0;
+  };
+  // Can fit in to the instruction encoding:
+  // - if only bits [11:0] are set.
+  // - if only bits [23:12] are set.
+  return FitsWithin12Bits(imm) || (FitsWithin12Bits(imm >> 12) && (imm & U12Mask) == 0);
+}
+
 // This is an emitter that is designed around the smallest code bloat as possible.
 // Eschewing most developer convenience in order to keep code as small as possible.

@@ -3780,8 +3780,7 @@ public:
    if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED &&
        MemSrc.MetaType.ExtendedType.rm.Idx() != ARMEmitter::Reg::r31.Idx()) {
      LOGMAN_THROW_AA_FMT(MemSrc.MetaType.ExtendedType.Shift == false, "Can't shift byte");
-      LOGMAN_MSG_A_FMT("Nope"); // XXX: Implement
-      // strb(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option);
+      strb(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option);
    }
    else if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED) {
      strb(rt, MemSrc.rn);
@@ -3811,8 +3810,7 @@ public:
    if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED &&
        MemSrc.MetaType.ExtendedType.rm.Idx() != ARMEmitter::Reg::r31.Idx()) {
      LOGMAN_THROW_AA_FMT(MemSrc.MetaType.ExtendedType.Shift == false, "Can't shift byte");
-      LOGMAN_MSG_A_FMT("Nope"); // XXX: Implement
-      // ldrb(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option);
+      ldrb(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option);
    }
    else if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED) {
      ldrb(rt, MemSrc.rn);
@@ -3841,9 +3839,7 @@ public:
  void strh(ARMEmitter::VRegister rt, ARMEmitter::ExtendedMemOperand MemSrc) {
    if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED &&
        MemSrc.MetaType.ExtendedType.rm.Idx() != ARMEmitter::Reg::r31.Idx()) {
-      LOGMAN_THROW_AA_FMT(MemSrc.MetaType.ExtendedType.Shift == false, "Can't shift byte");
-      LOGMAN_MSG_A_FMT("Nope"); // XXX: Implement
-      // strh(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option);
+      strh(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option, MemSrc.MetaType.ExtendedType.Shift);
    }
    else if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED) {
      strh(rt, MemSrc.rn);
@@ -3872,9 +3868,7 @@ public:
  void ldrh(ARMEmitter::VRegister rt, ARMEmitter::ExtendedMemOperand MemSrc) {
    if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED &&
        MemSrc.MetaType.ExtendedType.rm.Idx() != ARMEmitter::Reg::r31.Idx()) {
-      LOGMAN_THROW_AA_FMT(MemSrc.MetaType.ExtendedType.Shift == false, "Can't shift byte");
-      LOGMAN_MSG_A_FMT("Nope"); // XXX: Implement
-      // ldrh(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option);
+      ldrh(rt, MemSrc.rn, MemSrc.MetaType.ExtendedType.rm, MemSrc.MetaType.ExtendedType.Option, MemSrc.MetaType.ExtendedType.Shift);
    }
    else if (MemSrc.MetaType.Header.MemType == ARMEmitter::ExtendedMemOperand::Type::TYPE_EXTENDED) {
      ldrh(rt, MemSrc.rn);
@@ -2569,7 +2569,19 @@ public:
  }

  // SVE contiguous non-temporal load (scalar plus immediate)
-  // XXX:
+  void ldnt1b(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalLoad(0b00, zt, pg, rn, Imm);
+  }
+  void ldnt1h(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalLoad(0b01, zt, pg, rn, Imm);
+  }
+  void ldnt1w(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalLoad(0b10, zt, pg, rn, Imm);
+  }
+  void ldnt1d(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalLoad(0b11, zt, pg, rn, Imm);
+  }
+
  // SVE contiguous non-temporal load (scalar plus scalar)
  // XXX:
  // SVE load multiple structures (scalar plus immediate)
@@ -3321,7 +3333,18 @@ public:

  // SVE Memory - Contiguous Store with Immediate Offset
  // SVE contiguous non-temporal store (scalar plus immediate)
-  // XXX:
+  void stnt1b(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalStore(0b00, zt, pg, rn, Imm);
+  }
+  void stnt1h(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalStore(0b01, zt, pg, rn, Imm);
+  }
+  void stnt1w(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalStore(0b10, zt, pg, rn, Imm);
+  }
+  void stnt1d(ZRegister zt, PRegister pg, Register rn, int32_t Imm = 0) {
+    SVEContiguousNontemporalStore(0b11, zt, pg, rn, Imm);
+  }

  // SVE store multiple structures (scalar plus immediate)
  void st2b(ZRegister zt1, ZRegister zt2, PRegister pg, Register rn, int32_t Imm = 0) {
@@ -4481,6 +4504,38 @@ private:
    dc32(Instr);
  }

+  // SVE contiguous non-temporal load (scalar plus immediate)
+  void SVEContiguousNontemporalLoad(uint32_t msz, ZRegister zt, PRegister pg, Register rn, int32_t imm) {
+    LOGMAN_THROW_A_FMT(pg <= PReg::p7, "Can only use p0-p7 as a governing predicate");
+    LOGMAN_THROW_AA_FMT(imm >= -8 && imm <= 7,
+                        "Invalid loadstore offset ({}). Must be between [-8, 7]", imm);
+
+    const auto imm4 = static_cast<uint32_t>(imm) & 0xF;
+    uint32_t Instr = 0b1010'0100'0000'0000'1110'0000'0000'0000;
+    Instr |= msz << 23;
+    Instr |= imm4 << 16;
+    Instr |= pg.Idx() << 10;
+    Instr |= Encode_rn(rn);
+    Instr |= zt.Idx();
+    dc32(Instr);
+  }
+
+  // SVE contiguous non-temporal store (scalar plus immediate)
+  void SVEContiguousNontemporalStore(uint32_t msz, ZRegister zt, PRegister pg, Register rn, int32_t imm) {
+    LOGMAN_THROW_A_FMT(pg <= PReg::p7, "Can only use p0-p7 as a governing predicate");
+    LOGMAN_THROW_AA_FMT(imm >= -8 && imm <= 7,
+                        "Invalid loadstore offset ({}). Must be between [-8, 7]", imm);
+
+    const auto imm4 = static_cast<uint32_t>(imm) & 0xF;
+    uint32_t Instr = 0b1110'0100'0001'0000'1110'0000'0000'0000;
+    Instr |= msz << 23;
+    Instr |= imm4 << 16;
+    Instr |= pg.Idx() << 10;
+    Instr |= Encode_rn(rn);
+    Instr |= zt.Idx();
+    dc32(Instr);
+  }
+
  void SVEContiguousLoadImm(bool is_store, uint32_t dtype, int32_t imm, PRegister pg, Register rn, ZRegister zt) {
    LOGMAN_THROW_A_FMT(pg <= PReg::p7, "Can only use p0-p7 as a governing predicate");
    LOGMAN_THROW_AA_FMT(imm >= -8 && imm <= 7,
@@ -36,9 +36,9 @@
 // to by n, imm_s and imm_r are undefined.
 static bool IsImmLogical(uint64_t value,
                             unsigned width,
-                             unsigned* n,
-                             unsigned* imm_s,
-                             unsigned* imm_r) {
+                             unsigned* n = nullptr,
+                             unsigned* imm_s = nullptr,
+                             unsigned* imm_r = nullptr) {
  [[maybe_unused]] constexpr auto kBRegSize = 8;
  [[maybe_unused]] constexpr auto kHRegSize = 16;
  [[maybe_unused]] constexpr auto kSRegSize = 32;
@@ -243,6 +243,46 @@ static bool IsImmLogical(uint64_t value,
  return true;
 }

+static inline bool IsIntN(unsigned n, int64_t x) {
+  if (n == 64) return true;
+  int64_t limit = INT64_C(1) << (n - 1);
+  return (-limit <= x) && (x < limit);
+}
+
+static inline bool IsUintN(unsigned n, int64_t x) {
+  // Convert to an unsigned integer to avoid implementation-defined behavior.
+  return !(static_cast<uint64_t>(x) >> n);
+}
+
+// clang-format off
+#define INT_1_TO_32_LIST(V)                                                    \
+V(1)  V(2)  V(3)  V(4)  V(5)  V(6)  V(7)  V(8)                                 \
+V(9)  V(10) V(11) V(12) V(13) V(14) V(15) V(16)                                \
+V(17) V(18) V(19) V(20) V(21) V(22) V(23) V(24)                                \
+V(25) V(26) V(27) V(28) V(29) V(30) V(31) V(32)
+
+#define INT_33_TO_63_LIST(V)                                                   \
+V(33) V(34) V(35) V(36) V(37) V(38) V(39) V(40)                                \
+V(41) V(42) V(43) V(44) V(45) V(46) V(47) V(48)                                \
+V(49) V(50) V(51) V(52) V(53) V(54) V(55) V(56)                                \
+V(57) V(58) V(59) V(60) V(61) V(62) V(63)
+
+#define INT_1_TO_63_LIST(V) INT_1_TO_32_LIST(V) INT_33_TO_63_LIST(V)
+
+// clang-format on
+
+#define DECLARE_IS_INT_N(N)                                       \
+  static inline bool IsInt##N(int64_t x) { return IsIntN(N, x); }
+
+#define DECLARE_IS_UINT_N(N)                                        \
+  static inline bool IsUint##N(int64_t x) { return IsUintN(N, x); }
+
+INT_1_TO_63_LIST(DECLARE_IS_INT_N)
+INT_1_TO_63_LIST(DECLARE_IS_UINT_N)
+
+#undef DECLARE_IS_INT_N
+#undef DECLARE_IS_UINT_N
+
 private:

 template <typename V>
@@ -20,8 +20,7 @@ the coding style of LLVM. It can also be installed as a pre-commit git hook to
 check the coding style before submitting it. The canonical source of this script
 is in the LLVM source tree under llvm/utils/git.

-For C/C++ code it uses clang-format and for Python code it uses darker (which
-in turn invokes black).
+For C/C++ code it uses clang-format.

 You can learn more about the LLVM coding style on llvm.org:
 https://llvm.org/docs/CodingStandards.html
@@ -31,8 +30,8 @@ directory:

 ln -s $(pwd)/llvm/utils/git/code-format-helper.py .git/hooks/pre-commit

-You can control the exact path to clang-format or darker with the following
-environment variables: $CLANG_FORMAT_PATH and $DARKER_FORMAT_PATH.
+You can control the exact path to clang-format with the following
+environment variable: $CLANG_FORMAT_PATH.
 """


@@ -245,74 +244,7 @@ class ClangFormatHelper(FormatHelper):
        else:
            return None

-
-class DarkerFormatHelper(FormatHelper):
-    name = "darker"
-    friendly_name = "Python code formatter"
-
-    @property
-    def instructions(self) -> str:
-        return " ".join(self.darker_cmd)
-
-    def filter_changed_files(self, changed_files: List[str]) -> List[str]:
-        filtered_files = []
-        for path in changed_files:
-            name, ext = os.path.splitext(path)
-            if ext == ".py":
-                filtered_files.append(path)
-
-        return filtered_files
-
-    @property
-    def darker_fmt_path(self) -> str:
-        if "DARKER_FORMAT_PATH" in os.environ:
-            return os.environ["DARKER_FORMAT_PATH"]
-        return "darker"
-
-    def has_tool(self) -> bool:
-        cmd = [self.darker_fmt_path, "--version"]
-        proc = None
-        try:
-            proc = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        except:
-            return False
-        return proc.returncode == 0
-
-    def format_run(self, changed_files: List[str], args: FormatArgs) -> Optional[str]:
-        py_files = self.filter_changed_files(changed_files)
-        if not py_files:
-            return None
-        darker_cmd = [
-            self.darker_fmt_path,
-            "--check",
-            "--diff",
-        ]
-        if args.start_rev and args.end_rev:
-            darker_cmd += ["-r", f"{args.start_rev}...{args.end_rev}"]
-        darker_cmd += py_files
-        if args.verbose:
-            print(f"Running: {' '.join(darker_cmd)}")
-        self.darker_cmd = darker_cmd
-        proc = subprocess.run(
-            darker_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE
-        )
-        if args.verbose:
-            sys.stdout.write(proc.stderr.decode("utf-8"))
-
-        if proc.returncode != 0:
-            # formatting needed, or the command otherwise failed
-            if args.verbose:
-                print(f"error: {self.name} exited with code {proc.returncode}")
-                # Print the diff in the log so that it is viewable there
-                print(proc.stdout.decode("utf-8"))
-            return proc.stdout.decode("utf-8")
-        else:
-            sys.stdout.write(proc.stdout.decode("utf-8"))
-            return None
-
-
-ALL_FORMATTERS = (DarkerFormatHelper(), ClangFormatHelper())
-
+ALL_FORMATTERS = [ClangFormatHelper()]

 def hook_main():
    # fill out args
@@ -24,27 +24,6 @@ include(CheckCXXCompilerFlag)
 include(CheckIncludeFileCXX)
 include(CheckCXXSourceCompiles)

-set(CMAKE_REQUIRED_FLAGS "-std=c++11 -Wattributes -Werror=attributes")
-check_cxx_source_compiles(
-  "
-  __attribute__((preserve_all))
-  int Testy(int a, int b, int c, int d, int e, int f) {
-  return a + b + c + d + e + f;
-  }
-  int main() {
-  return Testy(0, 1, 2, 3, 4, 5);
-  }"
-  HAS_CLANG_PRESERVE_ALL)
-unset(CMAKE_REQUIRED_FLAGS)
-if (HAS_CLANG_PRESERVE_ALL)
-  if (MINGW_BUILD)
-    message(STATUS "Ignoring broken clang::preserve_all support")
-    set(HAS_CLANG_PRESERVE_ALL FALSE)
-  else()
-    message(STATUS "Has clang::preserve_all")
-  endif()
-endif ()
-
 if (EXISTS ${CMAKE_CURRENT_DIR}/External/vixl/)
    # Useful to have for freestanding libFEXCore
    add_subdirectory(External/vixl/)
@@ -148,9 +148,8 @@ def print_man_options(options):
            if (value_type == "strenum"):
                Enums = op_vals["Enums"]
                output_man.write("\\fBAvailable Options:\\fR\n")
-                for enum_op_key, enum_op_vals in Enums.items():
-                    output_man.write("{}, ".format(enum_op_vals))
-                output_man.write("\n")
+                output_man.write(", ".join(f"{enum_op_val}" for [_, enum_op_val] in Enums.items()))
+                output_man.write("\n.sp\n")

    output_man.write(".El\n")

@@ -179,9 +178,8 @@ def print_man_environment(options):
            if (value_type == "strenum"):
                Enums = op_vals["Enums"]
                output_man.write("\\fBAvailable Options:\\fR\n")
-                for enum_op_key, enum_op_vals in Enums.items():
-                    output_man.write("{}, ".format(enum_op_vals))
-                output_man.write("\n")
+                output_man.write(", ".join(f"{enum_op_val}" for [_, enum_op_val] in Enums.items()))
+                output_man.write("\n.sp\n")

    print_man_environment_tail()
    output_man.write(".El\n")
@@ -2,6 +2,7 @@
 import json
 import sys
 from dataclasses import dataclass, field
+import textwrap

 def ExitError(msg):
    print(msg)
@@ -53,6 +54,7 @@ class OpDefinition:
    SSAArgNum: int
    NonSSAArgNum: int
    DynamicDispatch: bool
+    LoweredX87: bool
    JITDispatch: bool
    JITDispatchOverride: str
    TiedSource: int
@@ -76,6 +78,7 @@ class OpDefinition:
        self.SSAArgNum = 0
        self.NonSSAArgNum = 0
        self.DynamicDispatch = False
+        self.LoweredX87 = False
        self.JITDispatch = True
        self.JITDispatchOverride = None
        self.TiedSource = -1
@@ -204,7 +207,7 @@ def parse_ops(ops):
                        (OpArg.Type == "GPR" or
                        OpArg.Type == "GPRPair" or
                        OpArg.Type == "FPR")):
-                        OpDef.EmitValidation.append("GetOpRegClass({}) == InvalidClass || WalkFindRegClass({}) == {}Class".format(NameWithPrefix, NameWithPrefix, OpArg.Type))
+                        OpDef.EmitValidation.append(f"GetOpRegClass({ArgName}) == InvalidClass || WalkFindRegClass({ArgName}) == {OpArg.Type}Class")

                    OpArg.Name = ArgName
                    OpArg.NameWithPrefix = NameWithPrefix
@@ -250,6 +253,13 @@ def parse_ops(ops):
            if "JITDispatchOverride" in op_val:
                OpDef.JITDispatchOverride = op_val["JITDispatchOverride"]

+            if "X87" in op_val:
+                OpDef.LoweredX87 = op_val["X87"]
+
+                # X87 implies !JITDispatch
+                assert("JITDispatch" not in op_val)
+                OpDef.JITDispatch = False
+
            if "TiedSource" in op_val:
                OpDef.TiedSource = op_val["TiedSource"]

@@ -258,12 +268,8 @@ def parse_ops(ops):
                for i in range(len(OpDef.EmitValidation)):
                    # Patch up all the argument names
                    for Arg in OpDef.Arguments:
-                        if Arg.Temporary:
-                            # Temporary ops just replace all instances no prefix variant
-                            OpDef.EmitValidation[i] = OpDef.EmitValidation[i].replace(Arg.NameWithPrefix, Arg.Name)
-                        else:
-                            # All other ops replace $ with _ variant for argument passed in
-                            OpDef.EmitValidation[i] = OpDef.EmitValidation[i].replace(Arg.NameWithPrefix, "_{}".format(Arg.Name))
+                        # Temporary ops just replace all instances no prefix variant
+                        OpDef.EmitValidation[i] = OpDef.EmitValidation[i].replace(Arg.NameWithPrefix, Arg.Name)

            #OpDef.print()

@@ -368,42 +374,28 @@ def print_ir_sizes():
        if op.Name == "Last":
            output_file.write("\t-1ULL,\n")
        else:
-            output_file.write("\tsizeof(IROp_{}),\n".format(op.Name))
+            output_file.write(f"\tsizeof(IROp_{op.Name}),\n")

-    output_file.write("};\n\n")
+    output_file.write(textwrap.dedent("""
+    };

-    output_file.write("// Make sure our array maps directly to the IROps enum\n")
-    output_file.write("static_assert(IRSizes[IROps::OP_LAST] == -1ULL);\n\n")
+    // Make sure our array maps directly to the IROps enum
+    static_assert(IRSizes[IROps::OP_LAST] == -1ULL);

-    output_file.write("[[maybe_unused, nodiscard]] static size_t GetSize(IROps Op) { return IRSizes[Op]; }\n\n")
+    [[maybe_unused, nodiscard]] static size_t GetSize(IROps Op) { return IRSizes[Op]; }
+    [[nodiscard, gnu::const, gnu::visibility("default")]] std::string_view const& GetName(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] uint8_t GetArgs(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] uint8_t GetRAArgs(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] FEXCore::IR::RegisterClassType GetRegClass(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] bool HasSideEffects(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] bool ImplicitFlagClobber(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] bool GetHasDest(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] bool LoweredX87(IROps Op);
+    [[nodiscard, gnu::const, gnu::visibility("default")]] int8_t TiedSource(IROps Op);

-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] std::string_view const& GetName(IROps Op);\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] uint8_t GetArgs(IROps Op);\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] uint8_t GetRAArgs(IROps Op);\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] FEXCore::IR::RegisterClassType GetRegClass(IROps Op);\n\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] bool HasSideEffects(IROps Op);\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] bool ImplicitFlagClobber(IROps Op);\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] bool GetHasDest(IROps Op);\n'
-    )
-    output_file.write(
-        '[[nodiscard, gnu::const, gnu::visibility("default")]] int8_t TiedSource(IROps Op);\n'
-    )
-
-    output_file.write("#undef IROP_SIZES\n")
-    output_file.write("#endif\n\n")
+    #undef IROP_SIZES
+    #endif
+    """))

 def print_ir_reg_classes():
    output_file.write("#ifdef IROP_REG_CLASSES_IMPL\n")
@@ -493,13 +485,14 @@ def print_ir_getraargs():
 def print_ir_hassideeffects():
    output_file.write("#ifdef IROP_HASSIDEEFFECTS_IMPL\n")

-    for array, prop, T in [
-        ("SideEffects", "HasSideEffects", "bool"),
-        ("ImplicitFlagClobbers", "ImplicitFlagClobber", "bool"),
-        ("TiedSources", "TiedSource", "int8_t"),
+    for prop, T in [
+        ("HasSideEffects", "bool"),
+        ("ImplicitFlagClobber", "bool"),
+        ("LoweredX87", "bool"),
+        ("TiedSource", "int8_t"),
    ]:
        output_file.write(
-            f"constexpr std::array<{'uint8_t' if T == 'bool' else T}, OP_LAST + 1> {array} = {{\n"
+            f"constexpr std::array<{'uint8_t' if T == 'bool' else T}, OP_LAST + 1> {prop}_ = {{\n"
        )
        for op in IROps:
            if T == "bool":
@@ -512,7 +505,7 @@ def print_ir_hassideeffects():
        output_file.write("};\n\n")

        output_file.write(f"{T} {prop}(IROps Op) {{\n")
-        output_file.write(f"  return {array}[Op];\n")
+        output_file.write(f"  return {prop}_[Op];\n")
        output_file.write("}\n")

    output_file.write("#undef IROP_HASSIDEEFFECTS_IMPL\n")
@@ -552,14 +545,20 @@ def print_ir_arg_printer():
            output_file.write("\t*out << \" \";\n")

            SSAArgNum = 0
+            FirstArg = True
            for i in range(0, len(op.Arguments)):
                arg = op.Arguments[i]
-                LastArg = len(op.Arguments) - i - 1 == 0

+                # No point printing temporaries that we can't recover
                if arg.Temporary:
-                    # Temporary that we can't recover
-                    output_file.write("\t*out << \"{}:Tmp:{}\";\n".format(arg.Type, arg.Name))
-                elif arg.IsSSA:
+                    continue
+
+                if FirstArg:
+                    FirstArg = False
+                else:
+                    output_file.write('\t*out << ", ";\n')
+
+                if arg.IsSSA:
                    # SSA value
                    output_file.write("\tPrintArg(out, IR, Op->Header.Args[{}], RAData);\n".format(SSAArgNum))
                    SSAArgNum = SSAArgNum + 1
@@ -567,9 +566,6 @@ def print_ir_arg_printer():
                    # User defined op that is stored
                    output_file.write("\tPrintArg(out, IR, Op->{});\n".format(arg.Name))

-                if not LastArg:
-                    output_file.write("\t*out << \", \";\n")
-
        output_file.write("break;\n")
        output_file.write("}\n")

@@ -668,11 +664,11 @@ def print_ir_allocator_helpers():
                    output_file.write("{} {}".format(CType, arg.Name));
                elif arg.IsSSA:
                    # SSA value
-                    output_file.write("OrderedNode *_{}".format(arg.Name))
+                    output_file.write("OrderedNode *{}".format(arg.Name))
                else:
                    # User defined op that is stored
                    CType = IRTypesToCXX[arg.Type].CXXName
-                    output_file.write("{} _{}".format(CType, arg.Name));
+                    output_file.write("{} {}".format(CType, arg.Name));

                if arg.DefaultInitializer != None:
                    output_file.write(" = {}".format(arg.DefaultInitializer))
@@ -686,23 +682,28 @@ def print_ir_allocator_helpers():
            if op.ImplicitFlagClobber:
                output_file.write("\t\tSaveNZCV(IROps::OP_{});".format(op.Name.upper()))

-            output_file.write("\t\tauto Op = AllocateOp<IROp_{}, IROps::OP_{}>();\n".format(op.Name, op.Name.upper()))
+            # We gather the "has x87?" flag as we go. This saves the user from
+            # having to keep track of whether they emitted any x87.
+            if op.LoweredX87:
+                output_file.write("\t\tRecordX87Use();\n")
+
+            output_file.write("\t\tauto _Op = AllocateOp<IROp_{}, IROps::OP_{}>();\n".format(op.Name, op.Name.upper()))

            if op.SSAArgNum != 0:
                output_file.write("\t\tauto ListDataBegin = DualListData.ListBegin();\n")
                for arg in op.Arguments:
                    if arg.IsSSA:
-                        output_file.write("\t\tOp.first->{} = _{}->Wrapped(ListDataBegin);\n".format(arg.Name, arg.Name))
+                        output_file.write("\t\t_Op.first->{} = {}->Wrapped(ListDataBegin);\n".format(arg.Name, arg.Name))

            if op.SSAArgNum != 0:
                for arg in op.Arguments:
                    if arg.IsSSA:
-                        output_file.write("\t\t_{}->AddUse();\n".format(arg.Name))
+                        output_file.write("\t\t{}->AddUse();\n".format(arg.Name))

            if len(op.Arguments) != 0:
                for arg in op.Arguments:
                    if not arg.Temporary and not arg.IsSSA:
-                        output_file.write("\t\tOp.first->{} = _{};\n".format(arg.Name, arg.Name))
+                        output_file.write("\t\t_Op.first->{} = {};\n".format(arg.Name, arg.Name))

            if (op.HasDest):
                # We can only infer a size if we have arguments
@@ -712,22 +713,22 @@ def print_ir_allocator_helpers():
                    if len(op.Arguments) != 0:
                        for arg in op.Arguments:
                            if arg.IsSSA:
-                                output_file.write("\t\tuint8_t Size{} = GetOpSize(_{});\n".format(arg.Name, arg.Name))
+                                output_file.write("\t\tuint8_t Size{} = GetOpSize({});\n".format(arg.Name, arg.Name))
                        for arg in op.Arguments:
                            if arg.IsSSA:
                                output_file.write("\t\tInferSize = std::max(InferSize, Size{});\n".format(arg.Name))

-                    output_file.write("\t\tOp.first->Header.Size = InferSize;\n")
+                    output_file.write("\t\t_Op.first->Header.Size = InferSize;\n")

            # Some ops without a destination still need an operating size
            # Effectively reusing the destination size value for operation size
            if op.DestSize != None:
-                output_file.write("\t\tOp.first->Header.Size = {};\n".format(op.DestSize))
+                output_file.write("\t\t_Op.first->Header.Size = {};\n".format(op.DestSize))

            if op.NumElements == None:
-                output_file.write("\t\tOp.first->Header.ElementSize = Op.first->Header.Size / ({});\n".format(1))
+                output_file.write("\t\t_Op.first->Header.ElementSize = _Op.first->Header.Size / ({});\n".format(1))
            else:
-                output_file.write("\t\tOp.first->Header.ElementSize = Op.first->Header.Size / ({});\n".format(op.NumElements))
+                output_file.write("\t\t_Op.first->Header.ElementSize = _Op.first->Header.Size / ({});\n".format(op.NumElements))

            # Insert validation here
            if op.EmitValidation != None:
@@ -738,58 +739,12 @@ def print_ir_allocator_helpers():
                    output_file.write("\tLOGMAN_THROW_A_FMT({}, \"{}\");\n".format(Validation, Sanitized))
                output_file.write("\t\t#endif\n")

-            output_file.write("\t\treturn Op;\n")
+            output_file.write("\t\treturn _Op;\n")
            output_file.write("\t}\n\n")

    output_file.write("#undef IROP_ALLOCATE_HELPERS\n")
    output_file.write("#endif\n")

-def print_ir_parser_switch_helper():
-    output_file.write("#ifdef IROP_PARSER_SWITCH_HELPERS\n")
-    for op in IROps:
-        if op.Name != "Last" and op.SwitchGen:
-            output_file.write("\tcase FEXCore::IR::IROps::OP_%s: {\n" % (op.Name.upper()))
-
-            for i in range(0, len(op.Arguments)):
-                arg = op.Arguments[i]
-                LastArg = len(op.Arguments) - i - 1 == 0
-
-                if arg.Temporary:
-                    CType = IRTypesToCXX[arg.Type].CXXName
-                    output_file.write("\t\tauto arg{} = DecodeValue<{}>(Def.Args[{}]);\n".format(i, CType, i))
-                    output_file.write("\t\tif (!CheckPrintErrorArg(Def, arg{}.first, {})) return false;\n".format(i, i))
-                elif arg.IsSSA:
-                    # SSA value
-                    output_file.write("\t\tauto arg{} = DecodeValue<OrderedNode*>(Def.Args[{}]);\n".format(i, i))
-                    output_file.write("\t\tif (!CheckPrintErrorArg(Def, arg{}.first, {})) return false;\n".format(i, i))
-                else:
-                    # User defined op that is stored
-                    CType = IRTypesToCXX[arg.Type].CXXName
-                    output_file.write("\t\tauto arg{} = DecodeValue<{}>(Def.Args[{}]);\n".format(i, CType, i))
-                    output_file.write("\t\tif (!CheckPrintErrorArg(Def, arg{}.first, {})) return false;\n".format(i, i))
-
-            output_file.write("\t\tDef.Node = _{}(\n".format(op.Name))
-
-            for i in range(0, len(op.Arguments)):
-                arg = op.Arguments[i]
-                LastArg = len(op.Arguments) - i - 1 == 0
-                output_file.write("\t\t\targ{}.second".format(i))
-                if not LastArg:
-                    output_file.write(",\n")
-                else:
-                    output_file.write("\n")
-
-            output_file.write("\t\t);\n")
-
-            output_file.write("\t\tSSANameMapper[Def.Definition] = Def.Node;\n")
-
-            output_file.write("\t\tbreak;\n")
-            output_file.write("\t}\n")
-
-
-    output_file.write("#undef IROP_PARSER_SWITCH_HELPERS\n")
-    output_file.write("#endif\n")
-
 def print_ir_dispatcher_defs():
    output_dispatch_file.write("#ifdef IROP_DISPATCH_DEFS\n")
    for op in IROps:
@@ -848,7 +803,6 @@ print_ir_hassideeffects()
 print_ir_gethasdest()
 print_ir_arg_printer()
 print_ir_allocator_helpers()
-print_ir_parser_switch_helper()

 output_file.close()

@@ -67,7 +67,6 @@ set (SRCS
  Common/SoftFloat-3e/s_approxRecipSqrt32_1.c
  Common/SoftFloat-3e/s_approxRecipSqrt_1Ks.c
  Common/SoftFloat-3e/softfloat_raiseFlags.c
-  Common/SoftFloat-3e/softfloat_state.c
  Common/SoftFloat-3e/f64_to_extF80.c
  Common/SoftFloat-3e/s_commonNaNToExtF80UI.c
  Common/SoftFloat-3e/s_normSubnormalF64Sig.c
@@ -91,10 +90,10 @@ set (SRCS
  Interface/Core/CPUBackend.cpp
  Interface/Core/CPUID.cpp
  Interface/Core/Frontend.cpp
-  Interface/Core/HostFeatures.cpp
  Interface/Core/ObjectCache/JobHandling.cpp
  Interface/Core/ObjectCache/NamedRegionObjectHandler.cpp
  Interface/Core/ObjectCache/ObjectCacheService.cpp
+  Interface/Core/OpcodeDispatcher/AVX_128.cpp
  Interface/Core/OpcodeDispatcher/Crypto.cpp
  Interface/Core/OpcodeDispatcher/Flags.cpp
  Interface/Core/OpcodeDispatcher/Vector.cpp
@@ -112,7 +111,6 @@ set (SRCS
  Interface/Core/JIT/Arm64/BranchOps.cpp
  Interface/Core/JIT/Arm64/ConversionOps.cpp
  Interface/Core/JIT/Arm64/EncryptionOps.cpp
-  Interface/Core/JIT/Arm64/FlagOps.cpp
  Interface/Core/JIT/Arm64/MemoryOps.cpp
  Interface/Core/JIT/Arm64/MiscOps.cpp
  Interface/Core/JIT/Arm64/MoveOps.cpp
@@ -137,13 +135,13 @@ set (SRCS
  Interface/IR/IREmitter.cpp
  Interface/IR/PassManager.cpp
  Interface/IR/Passes/ConstProp.cpp
-  Interface/IR/Passes/DeadContextStoreElimination.cpp
  Interface/IR/Passes/IRDumperPass.cpp
  Interface/IR/Passes/IRValidation.cpp
  Interface/IR/Passes/RAValidation.cpp
  Interface/IR/Passes/RedundantFlagCalculationElimination.cpp
  Interface/IR/Passes/DeadStoreElimination.cpp
  Interface/IR/Passes/RegisterAllocationPass.cpp
+  Interface/IR/Passes/x87StackOptimizationPass.cpp
  Utils/Telemetry.cpp
  Utils/Threads.cpp
  Utils/Profiler.cpp
@@ -160,7 +158,7 @@ if (ENABLE_GLIBC_ALLOCATOR_HOOK_FAULT)
    Utils/AllocatorOverride.cpp)
 endif()

-set(DEFINES -DTHREAD_LOCAL=_Thread_local -DJIT_ARM64)
+set(DEFINES -DJIT_ARM64)

 if (_M_X86_64)
  list(APPEND DEFINES -D_M_X86_64=1)
@@ -170,11 +168,6 @@ if (_M_ARM_64)
  list(APPEND DEFINES -D_M_ARM_64=1)
 endif()

-if (ENABLE_VIXL_SIMULATOR)
-  # We can run the simulator on both x86-64 or AArch64 hosts
-  list(APPEND DEFINES -DVIXL_SIMULATOR=1 -DVIXL_INCLUDE_SIMULATOR_AARCH64=1)
-endif()
-
 if (ENABLE_VIXL_DISASSEMBLER)
  list(APPEND DEFINES -DVIXL_DISASSEMBLER=1)
 endif()
@@ -367,16 +360,6 @@ function(AddLibrary Name Type)
  target_link_libraries(${Name} FEXCore_Base)
  target_compile_options(${Name} PRIVATE ${FEX_TUNE_COMPILE_FLAGS})
  set_target_properties(${Name} PROPERTIES OUTPUT_NAME FEXCore)
-  if (MINGW_BUILD)
-    # Mingw build isn't building a linux shared library, so it can't have a SONAME.
-    set_target_properties(${Name} PROPERTIES NO_SONAME ON)
-    # Change the suffixes otherwise cmake continues using .a and .so
-    if (${Type} STREQUAL SHARED)
-      set_target_properties(${Name} PROPERTIES SUFFIX ".dll")
-    elseif(${Type} STREQUAL STATIC)
-      set_target_properties(${Name} PROPERTIES SUFFIX ".lib")
-    endif()
-  endif()

  AddDefaultOptionsToTarget(${Name})
 endfunction()
@@ -41,7 +41,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_add( extFloat80_t a, extFloat80_t b )
+extFloat80_t extF80_add( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -53,7 +53,7 @@ extFloat80_t extF80_add( extFloat80_t a, extFloat80_t b )
    bool signB;
    extFloat80_t
        (*magsFuncPtr)(
-            uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
+            struct softfloat_state *, uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );

    uA.f = a;
    uiA64 = uA.s.signExp;
@@ -65,6 +65,6 @@ extFloat80_t extF80_add( extFloat80_t a, extFloat80_t b )
    signB = signExtF80UI64( uiB64 );
    magsFuncPtr =
        (signA == signB) ? softfloat_addMagsExtF80 : softfloat_subMagsExtF80;
-    return (*magsFuncPtr)( uiA64, uiA0, uiB64, uiB0, signA );
+    return (*magsFuncPtr)( state, uiA64, uiA0, uiB64, uiB0, signA );
 }

@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_div( extFloat80_t a, extFloat80_t b )
+extFloat80_t extF80_div( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -107,7 +107,7 @@ extFloat80_t extF80_div( extFloat80_t a, extFloat80_t b )
    if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
        if ( ! sigB ) {
            if ( ! sigA ) goto invalid;
-            softfloat_raiseFlags( softfloat_flag_infinite );
+            softfloat_raiseFlags( state, softfloat_flag_infinite );
            goto infinity;
        }
        normExpSig = softfloat_normSubnormalExtF80Sig( sigB );
@@ -169,18 +169,18 @@ extFloat80_t extF80_div( extFloat80_t a, extFloat80_t b )
    sigZExtra = (uint64_t) ((uint_fast64_t) q<<41);
    return
        softfloat_roundPackToExtF80(
-            signZ, expZ, sigZ, sigZExtra, extF80_roundingPrecision );
+            state, signZ, expZ, sigZ, sigZExtra, state->roundingPrecision );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 propagateNaN:
-    uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
+    uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, uiA0, uiB64, uiB0 );
    uiZ64 = uiZ.v64;
    uiZ0  = uiZ.v0;
    goto uiZ;
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 invalid:
-    softfloat_raiseFlags( softfloat_flag_invalid );
+    softfloat_raiseFlags( state, softfloat_flag_invalid );
    uiZ64 = defaultNaNExtF80UI64;
    uiZ0  = defaultNaNExtF80UI0;
    goto uiZ;
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-bool extF80_eq( extFloat80_t a, extFloat80_t b )
+bool extF80_eq( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -62,7 +62,7 @@ bool extF80_eq( extFloat80_t a, extFloat80_t b )
               softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
            || softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
        ) {
-            softfloat_raiseFlags( softfloat_flag_invalid );
+            softfloat_raiseFlags( state, softfloat_flag_invalid );
        }
        return false;
    }
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-bool extF80_lt( extFloat80_t a, extFloat80_t b )
+bool extF80_lt( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -59,7 +59,7 @@ bool extF80_lt( extFloat80_t a, extFloat80_t b )
    uiB64 = uB.s.signExp;
    uiB0  = uB.s.signif;
    if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
        return false;
    }
    signA = signExtF80UI64( uiA64 );
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_mul( extFloat80_t a, extFloat80_t b )
+extFloat80_t extF80_mul( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -125,11 +125,11 @@ extFloat80_t extF80_mul( extFloat80_t a, extFloat80_t b )
    }
    return
        softfloat_roundPackToExtF80(
-            signZ, expZ, sig128Z.v64, sig128Z.v0, extF80_roundingPrecision );
+            state, signZ, expZ, sig128Z.v64, sig128Z.v0, state->roundingPrecision );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 propagateNaN:
-    uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
+    uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, uiA0, uiB64, uiB0 );
    uiZ64 = uiZ.v64;
    uiZ0  = uiZ.v0;
    goto uiZ;
@@ -137,7 +137,7 @@ extFloat80_t extF80_mul( extFloat80_t a, extFloat80_t b )
    *------------------------------------------------------------------------*/
 infArg:
    if ( ! magBits ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
        uiZ64 = defaultNaNExtF80UI64;
        uiZ0  = defaultNaNExtF80UI0;
    } else {
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_rem( extFloat80_t a, extFloat80_t b )
+extFloat80_t extF80_rem( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -193,18 +193,18 @@ extFloat80_t extF80_rem( extFloat80_t a, extFloat80_t b )
    }
    return
        softfloat_normRoundPackToExtF80(
-            signRem, rem.v64 | rem.v0 ? expB + 32 : 0, rem.v64, rem.v0, 80 );
+            state, signRem, rem.v64 | rem.v0 ? expB + 32 : 0, rem.v64, rem.v0, 80 );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 propagateNaN:
-    uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
+    uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, uiA0, uiB64, uiB0 );
    uiZ64 = uiZ.v64;
    uiZ0  = uiZ.v0;
    goto uiZ;
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 invalid:
-    softfloat_raiseFlags( softfloat_flag_invalid );
+    softfloat_raiseFlags( state, softfloat_flag_invalid );
    uiZ64 = defaultNaNExtF80UI64;
    uiZ0  = defaultNaNExtF80UI0;
    goto uiZ;
@@ -43,7 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 FEXCORE_PRESERVE_ALL_ATTR
 extFloat80_t
- extF80_roundToInt( extFloat80_t a, uint_fast8_t roundingMode, bool exact )
+ extF80_roundToInt( struct softfloat_state *state, extFloat80_t a, uint_fast8_t roundingMode, bool exact )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64, signUI64;
@@ -80,7 +80,7 @@ extFloat80_t
    if ( 0x403E <= exp ) {
        if ( exp == 0x7FFF ) {
            if ( sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
-                uiZ = softfloat_propagateNaNExtF80UI( uiA64, sigA, 0, 0 );
+                uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, sigA, 0, 0 );
                uiZ64 = uiZ.v64;
                sigZ  = uiZ.v0;
                goto uiZ;
@@ -93,7 +93,7 @@ extFloat80_t
        goto uiZ;
    }
    if ( exp <= 0x3FFE ) {
-        if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
+        if ( exact ) state->exceptionFlags |= softfloat_flag_inexact;
        switch ( roundingMode ) {
         case softfloat_round_near_even:
            if ( !(sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF )) ) break;
@@ -145,7 +145,7 @@ extFloat80_t
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) sigZ |= lastBitMask;
 #endif
-        if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
+        if ( exact ) state->exceptionFlags |= softfloat_flag_inexact;
    }
 uiZ:
    uZ.s.signExp = uiZ64;
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_sqrt( extFloat80_t a )
+extFloat80_t extF80_sqrt( struct softfloat_state *state, extFloat80_t a )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -74,7 +74,7 @@ extFloat80_t extF80_sqrt( extFloat80_t a )
    *------------------------------------------------------------------------*/
    if ( expA == 0x7FFF ) {
        if ( sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
-            uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, 0, 0 );
+            uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, uiA0, 0, 0 );
            uiZ64 = uiZ.v64;
            uiZ0  = uiZ.v0;
            goto uiZ;
@@ -155,11 +155,11 @@ extFloat80_t extF80_sqrt( extFloat80_t a )
    }
    return
        softfloat_roundPackToExtF80(
-            0, expZ, sigZ, sigZExtra, extF80_roundingPrecision );
+            state, 0, expZ, sigZ, sigZExtra, state->roundingPrecision );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 invalid:
-    softfloat_raiseFlags( softfloat_flag_invalid );
+    softfloat_raiseFlags( state, softfloat_flag_invalid );
    uiZ64 = defaultNaNExtF80UI64;
    uiZ0  = defaultNaNExtF80UI0;
    goto uiZ;
@@ -41,7 +41,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_sub( extFloat80_t a, extFloat80_t b )
+extFloat80_t extF80_sub( struct softfloat_state *state, extFloat80_t a, extFloat80_t b )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -54,7 +54,7 @@ extFloat80_t extF80_sub( extFloat80_t a, extFloat80_t b )
 #if ! defined INLINE_LEVEL || (INLINE_LEVEL < 2)
    extFloat80_t
        (*magsFuncPtr)(
-            uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
+            struct softfloat_state *, uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
 #endif

    uA.f = a;
@@ -67,14 +67,14 @@ extFloat80_t extF80_sub( extFloat80_t a, extFloat80_t b )
    signB = signExtF80UI64( uiB64 );
 #if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
    if ( signA == signB ) {
-        return softfloat_subMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
+        return softfloat_subMagsExtF80( state, uiA64, uiA0, uiB64, uiB0, signA );
    } else {
-        return softfloat_addMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
+        return softfloat_addMagsExtF80( state, uiA64, uiA0, uiB64, uiB0, signA );
    }
 #else
    magsFuncPtr =
        (signA == signB) ? softfloat_subMagsExtF80 : softfloat_addMagsExtF80;
-    return (*magsFuncPtr)( uiA64, uiA0, uiB64, uiB0, signA );
+    return (*magsFuncPtr)( state, uiA64, uiA0, uiB64, uiB0, signA );
 #endif

 }
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-float128_t extF80_to_f128( extFloat80_t a )
+float128_t extF80_to_f128( struct softfloat_state *state, extFloat80_t a )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -61,7 +61,7 @@ float128_t extF80_to_f128( extFloat80_t a )
    exp = expExtF80UI64( uiA64 );
    frac = uiA0 & UINT64_C( 0x7FFFFFFFFFFFFFFF );
    if ( (exp == 0x7FFF) && frac ) {
-        softfloat_extF80UIToCommonNaN( uiA64, uiA0, &commonNaN );
+        softfloat_extF80UIToCommonNaN( state, uiA64, uiA0, &commonNaN );
        uiZ = softfloat_commonNaNToF128UI( &commonNaN );
    } else {
        sign = signExtF80UI64( uiA64 );
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-float32_t extF80_to_f32( extFloat80_t a )
+float32_t extF80_to_f32( struct softfloat_state *state, extFloat80_t a )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -66,7 +66,7 @@ float32_t extF80_to_f32( extFloat80_t a )
    *------------------------------------------------------------------------*/
    if ( exp == 0x7FFF ) {
        if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
-            softfloat_extF80UIToCommonNaN( uiA64, uiA0, &commonNaN );
+            softfloat_extF80UIToCommonNaN( state, uiA64, uiA0, &commonNaN );
            uiZ = softfloat_commonNaNToF32UI( &commonNaN );
        } else {
            uiZ = packToF32UI( sign, 0xFF, 0 );
@@ -86,7 +86,7 @@ float32_t extF80_to_f32( extFloat80_t a )
    if ( sizeof (int_fast16_t) < sizeof (int_fast32_t) ) {
        if ( exp < -0x1000 ) exp = -0x1000;
    }
-    return softfloat_roundPackToF32( sign, exp, sig32 );
+    return softfloat_roundPackToF32( state, sign, exp, sig32 );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 uiZ:
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-float64_t extF80_to_f64( extFloat80_t a )
+float64_t extF80_to_f64( struct softfloat_state *state, extFloat80_t a )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -72,7 +72,7 @@ float64_t extF80_to_f64( extFloat80_t a )
    *------------------------------------------------------------------------*/
    if ( exp == 0x7FFF ) {
        if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
-            softfloat_extF80UIToCommonNaN( uiA64, uiA0, &commonNaN );
+            softfloat_extF80UIToCommonNaN( state, uiA64, uiA0, &commonNaN );
            uiZ = softfloat_commonNaNToF64UI( &commonNaN );
        } else {
            uiZ = packToF64UI( sign, 0x7FF, 0 );
@@ -86,7 +86,7 @@ float64_t extF80_to_f64( extFloat80_t a )
    if ( sizeof (int_fast16_t) < sizeof (int_fast32_t) ) {
        if ( exp < -0x1000 ) exp = -0x1000;
    }
-    return softfloat_roundPackToF64( sign, exp, sig );
+    return softfloat_roundPackToF64( state, sign, exp, sig );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 uiZ:
@@ -43,7 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 FEXCORE_PRESERVE_ALL_ATTR
 int_fast32_t
- extF80_to_i32( extFloat80_t a, uint_fast8_t roundingMode, bool exact )
+ extF80_to_i32( struct softfloat_state *state, extFloat80_t a, uint_fast8_t roundingMode, bool exact )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -68,7 +68,7 @@ int_fast32_t
 #elif (i32_fromNaN == i32_fromNegOverflow)
        sign = 1;
 #else
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
        return i32_fromNaN;
 #endif
    }
@@ -78,7 +78,7 @@ int_fast32_t
    shiftDist = 0x4032 - exp;
    if ( shiftDist <= 0 ) shiftDist = 1;
    sig = softfloat_shiftRightJam64( sig, shiftDist );
-    return softfloat_roundToI32( sign, sig, roundingMode, exact );
+    return softfloat_roundToI32( state, sign, sig, roundingMode, exact );

 }

@@ -43,7 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 FEXCORE_PRESERVE_ALL_ATTR
 int_fast64_t
- extF80_to_i64( extFloat80_t a, uint_fast8_t roundingMode, bool exact )
+ extF80_to_i64( struct softfloat_state *state, extFloat80_t a, uint_fast8_t roundingMode, bool exact )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -68,7 +68,7 @@ int_fast64_t
        /*--------------------------------------------------------------------
        *--------------------------------------------------------------------*/
        if ( shiftDist ) {
-            softfloat_raiseFlags( softfloat_flag_invalid );
+            softfloat_raiseFlags( state, softfloat_flag_invalid );
            return
                (exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
                    ? i64_fromNaN
@@ -84,7 +84,7 @@ int_fast64_t
        sig = sig64Extra.v;
        sigExtra = sig64Extra.extra;
    }
-    return softfloat_roundToI64( sign, sig, sigExtra, roundingMode, exact );
+    return softfloat_roundToI64( state, sign, sig, sigExtra, roundingMode, exact );

 }

@@ -43,7 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 FEXCORE_PRESERVE_ALL_ATTR
 uint_fast64_t
- extF80_to_ui64( extFloat80_t a, uint_fast8_t roundingMode, bool exact )
+ extF80_to_ui64( struct softfloat_state *state, extFloat80_t a, uint_fast8_t roundingMode, bool exact )
 {
    union { struct extFloat80M s; extFloat80_t f; } uA;
    uint_fast16_t uiA64;
@@ -65,7 +65,7 @@ uint_fast64_t
    *------------------------------------------------------------------------*/
    shiftDist = 0x403E - exp;
    if ( shiftDist < 0 ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
        return
            (exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
                ? ui64_fromNaN
@@ -79,7 +79,7 @@ uint_fast64_t
        sig = sig64Extra.v;
        sigExtra = sig64Extra.extra;
    }
-    return softfloat_roundToUI64( sign, sig, sigExtra, roundingMode, exact );
+    return softfloat_roundToUI64( state, sign, sig, sigExtra, roundingMode, exact );

 }

@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t f128_to_extF80( float128_t a )
+extFloat80_t f128_to_extF80( struct softfloat_state *state, float128_t a )
 {
    union ui128_f128 uA;
    uint_fast64_t uiA64, uiA0;
@@ -70,7 +70,7 @@ extFloat80_t f128_to_extF80( float128_t a )
    *------------------------------------------------------------------------*/
    if ( exp == 0x7FFF ) {
        if ( frac64 | frac0 ) {
-            softfloat_f128UIToCommonNaN( uiA64, uiA0, &commonNaN );
+            softfloat_f128UIToCommonNaN( state, uiA64, uiA0, &commonNaN );
            uiZ = softfloat_commonNaNToExtF80UI( &commonNaN );
            uiZ64 = uiZ.v64;
            uiZ0  = uiZ.v0;
@@ -98,7 +98,7 @@ extFloat80_t f128_to_extF80( float128_t a )
    sig128 =
        softfloat_shortShiftLeft128(
            frac64 | UINT64_C( 0x0001000000000000 ), frac0, 15 );
-    return softfloat_roundPackToExtF80( sign, exp, sig128.v64, sig128.v0, 80 );
+    return softfloat_roundPackToExtF80( state, sign, exp, sig128.v64, sig128.v0, 80 );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 uiZ:
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t f32_to_extF80( float32_t a )
+extFloat80_t f32_to_extF80( struct softfloat_state *state, float32_t a )
 {
    union ui32_f32 uA;
    uint_fast32_t uiA;
@@ -67,7 +67,7 @@ extFloat80_t f32_to_extF80( float32_t a )
    *------------------------------------------------------------------------*/
    if ( exp == 0xFF ) {
        if ( frac ) {
-            softfloat_f32UIToCommonNaN( uiA, &commonNaN );
+            softfloat_f32UIToCommonNaN( state, uiA, &commonNaN );
            uiZ = softfloat_commonNaNToExtF80UI( &commonNaN );
            uiZ64 = uiZ.v64;
            uiZ0  = uiZ.v0;
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "softfloat.h"

 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t f64_to_extF80( float64_t a )
+extFloat80_t f64_to_extF80( struct softfloat_state *state, float64_t a )
 {
    union ui64_f64 uA;
    uint_fast64_t uiA;
@@ -67,7 +67,7 @@ extFloat80_t f64_to_extF80( float64_t a )
    *------------------------------------------------------------------------*/
    if ( exp == 0x7FF ) {
        if ( frac ) {
-            softfloat_f64UIToCommonNaN( uiA, &commonNaN );
+            softfloat_f64UIToCommonNaN( state, uiA, &commonNaN );
            uiZ = softfloat_commonNaNToExtF80UI( &commonNaN );
            uiZ64 = uiZ.v64;
            uiZ0  = uiZ.v0;
@@ -63,19 +63,19 @@ uint_fast32_t softfloat_roundToUI32( bool, uint_fast64_t, uint_fast8_t, bool );
 #ifdef SOFTFLOAT_FAST_INT64
 uint_fast64_t
 softfloat_roundToUI64(
-     bool, uint_fast64_t, uint_fast64_t, uint_fast8_t, bool );
+     struct softfloat_state *, bool, uint_fast64_t, uint_fast64_t, uint_fast8_t, bool );
 #else
 uint_fast64_t softfloat_roundMToUI64( bool, uint32_t *, uint_fast8_t, bool );
 #endif

 FEXCORE_PRESERVE_ALL_ATTR
-int_fast32_t softfloat_roundToI32( bool, uint_fast64_t, uint_fast8_t, bool );
+int_fast32_t softfloat_roundToI32( struct softfloat_state *, bool, uint_fast64_t, uint_fast8_t, bool );

 #ifdef SOFTFLOAT_FAST_INT64
 FEXCORE_PRESERVE_ALL_ATTR
 int_fast64_t
 softfloat_roundToI64(
-     bool, uint_fast64_t, uint_fast64_t, uint_fast8_t, bool );
+     struct softfloat_state *, bool, uint_fast64_t, uint_fast64_t, uint_fast8_t, bool );
 #else
 int_fast64_t softfloat_roundMToI64( bool, uint32_t *, uint_fast8_t, bool );
 #endif
@@ -115,7 +115,7 @@ FEXCORE_PRESERVE_ALL_ATTR
 struct exp16_sig32 softfloat_normSubnormalF32Sig( uint_fast32_t );

 FEXCORE_PRESERVE_ALL_ATTR
-float32_t softfloat_roundPackToF32( bool, int_fast16_t, uint_fast32_t );
+float32_t softfloat_roundPackToF32( struct softfloat_state *, bool, int_fast16_t, uint_fast32_t );
 float32_t softfloat_normRoundPackToF32( bool, int_fast16_t, uint_fast32_t );

 float32_t softfloat_addMagsF32( uint_fast32_t, uint_fast32_t );
@@ -138,7 +138,7 @@ FEXCORE_PRESERVE_ALL_ATTR
 struct exp16_sig64 softfloat_normSubnormalF64Sig( uint_fast64_t );

 FEXCORE_PRESERVE_ALL_ATTR
-float64_t softfloat_roundPackToF64( bool, int_fast16_t, uint_fast64_t );
+float64_t softfloat_roundPackToF64( struct softfloat_state *, bool, int_fast16_t, uint_fast64_t );
 float64_t softfloat_normRoundPackToF64( bool, int_fast16_t, uint_fast64_t );

 float64_t softfloat_addMagsF64( uint_fast64_t, uint_fast64_t, bool );
@@ -167,18 +167,18 @@ struct exp32_sig64 softfloat_normSubnormalExtF80Sig( uint_fast64_t );
 FEXCORE_PRESERVE_ALL_ATTR
 extFloat80_t
 softfloat_roundPackToExtF80(
-     bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast8_t );
+     struct softfloat_state *, bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast8_t );
 FEXCORE_PRESERVE_ALL_ATTR
 extFloat80_t
 softfloat_normRoundPackToExtF80(
-     bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast8_t );
+     struct softfloat_state *, bool, int_fast32_t, uint_fast64_t, uint_fast64_t, uint_fast8_t );

 extFloat80_t
 softfloat_addMagsExtF80(
-     uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
+     struct softfloat_state *, uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
 extFloat80_t
 softfloat_subMagsExtF80(
-     uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
+     struct softfloat_state *, uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );

 /*----------------------------------------------------------------------------
 *----------------------------------------------------------------------------*/
@@ -43,6 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 extFloat80_t
 softfloat_addMagsExtF80(
+     struct softfloat_state *state,
     uint_fast16_t uiA64,
     uint_fast64_t uiA0,
     uint_fast16_t uiB64,
@@ -140,11 +141,11 @@ extFloat80_t
 roundAndPack:
    return
        softfloat_roundPackToExtF80(
-            signZ, expZ, sigZ, sigZExtra, extF80_roundingPrecision );
+            state, signZ, expZ, sigZ, sigZExtra, state->roundingPrecision );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 propagateNaN:
-    uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
+    uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, uiA0, uiB64, uiB0 );
    uiZ64 = uiZ.v64;
    uiZ0  = uiZ.v0;
 uiZ:
@@ -49,11 +49,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 void
 softfloat_extF80UIToCommonNaN(
-     uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
+     struct softfloat_state *state, uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
 {

    if ( softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
    }
    zPtr->sign = uiA64>>15;
    zPtr->v64  = uiA0<<1;
@@ -50,12 +50,12 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 void
 softfloat_f128UIToCommonNaN(
-     uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
+     struct softfloat_state *state, uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
 {
    struct uint128 NaNSig;

    if ( softfloat_isSigNaNF128UI( uiA64, uiA0 ) ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
    }
    NaNSig = softfloat_shortShiftLeft128( uiA64, uiA0, 16 );
    zPtr->sign = uiA64>>63;
@@ -46,11 +46,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | exception is raised.
 *----------------------------------------------------------------------------*/
 FEXCORE_PRESERVE_ALL_ATTR
-void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr )
+void softfloat_f32UIToCommonNaN( struct softfloat_state *state, uint_fast32_t uiA, struct commonNaN *zPtr )
 {

    if ( softfloat_isSigNaNF32UI( uiA ) ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
    }
    zPtr->sign = uiA>>31;
    zPtr->v64  = (uint_fast64_t) uiA<<41;
@@ -46,11 +46,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | exception is raised.
 *----------------------------------------------------------------------------*/
 FEXCORE_PRESERVE_ALL_ATTR
-void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr )
+void softfloat_f64UIToCommonNaN( struct softfloat_state *state, uint_fast64_t uiA, struct commonNaN *zPtr )
 {

    if ( softfloat_isSigNaNF64UI( uiA ) ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
    }
    zPtr->sign = uiA>>63;
    zPtr->v64  = uiA<<12;
@@ -42,6 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 extFloat80_t
 softfloat_normRoundPackToExtF80(
+     struct softfloat_state *state,
     bool sign,
     int_fast32_t exp,
     uint_fast64_t sig,
@@ -66,7 +67,7 @@ extFloat80_t
    }
    return
        softfloat_roundPackToExtF80(
-            sign, exp, sig, sigExtra, roundingPrecision );
+            state, sign, exp, sig, sigExtra, roundingPrecision );

 }

@@ -53,6 +53,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 struct uint128
 softfloat_propagateNaNExtF80UI(
+     struct softfloat_state *state,
     uint_fast16_t uiA64,
     uint_fast64_t uiA0,
     uint_fast16_t uiB64,
@@ -76,7 +77,7 @@ struct uint128
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
    if ( isSigNaNA | isSigNaNB ) {
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
        if ( isSigNaNA ) {
            if ( isSigNaNB ) goto returnLargerMag;
            if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto returnB;
@@ -43,6 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 extFloat80_t
 softfloat_roundPackToExtF80(
+     struct softfloat_state *state,
     bool sign,
     int_fast32_t exp,
     uint_fast64_t sig,
@@ -59,7 +60,7 @@ extFloat80_t

    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
-    roundingMode = softfloat_roundingMode;
+    roundingMode = state->roundingMode;
    roundNearEven = (roundingMode == softfloat_round_near_even);
    if ( roundingPrecision == 80 ) goto precision80;
    if ( roundingPrecision == 64 ) {
@@ -87,15 +88,15 @@ extFloat80_t
            /*----------------------------------------------------------------
            *----------------------------------------------------------------*/
            isTiny =
-                   (softfloat_detectTininess
+                   (state->detectTininess
                        == softfloat_tininess_beforeRounding)
                || (exp < 0)
                || (sig <= (uint64_t) (sig + roundIncrement));
            sig = softfloat_shiftRightJam64( sig, 1 - exp );
            roundBits = sig & roundMask;
            if ( roundBits ) {
-                if ( isTiny ) softfloat_raiseFlags( softfloat_flag_underflow );
-                softfloat_exceptionFlags |= softfloat_flag_inexact;
+                if ( isTiny ) softfloat_raiseFlags( state, softfloat_flag_underflow );
+                state->exceptionFlags |= softfloat_flag_inexact;
 #ifdef SOFTFLOAT_ROUND_ODD
                if ( roundingMode == softfloat_round_odd ) {
                    sig |= roundMask + 1;
@@ -121,7 +122,7 @@ extFloat80_t
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
    if ( roundBits ) {
-        softfloat_exceptionFlags |= softfloat_flag_inexact;
+        state->exceptionFlags |= softfloat_flag_inexact;
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) {
            sig = (sig & ~roundMask) | (roundMask + 1);
@@ -157,7 +158,7 @@ extFloat80_t
            /*----------------------------------------------------------------
            *----------------------------------------------------------------*/
            isTiny =
-                   (softfloat_detectTininess
+                   (state->detectTininess
                        == softfloat_tininess_beforeRounding)
                || (exp < 0)
                || ! doIncrement
@@ -168,8 +169,8 @@ extFloat80_t
            sig = sig64Extra.v;
            sigExtra = sig64Extra.extra;
            if ( sigExtra ) {
-                if ( isTiny ) softfloat_raiseFlags( softfloat_flag_underflow );
-                softfloat_exceptionFlags |= softfloat_flag_inexact;
+                if ( isTiny ) softfloat_raiseFlags( state, softfloat_flag_underflow );
+                state->exceptionFlags |= softfloat_flag_inexact;
 #ifdef SOFTFLOAT_ROUND_ODD
                if ( roundingMode == softfloat_round_odd ) {
                    sig |= 1;
@@ -207,7 +208,7 @@ extFloat80_t
            roundMask = 0;
 overflow:
            softfloat_raiseFlags(
-                softfloat_flag_overflow | softfloat_flag_inexact );
+                state, softfloat_flag_overflow | softfloat_flag_inexact );
            if (
                   roundNearEven
                || (roundingMode == softfloat_round_near_maxMag)
@@ -226,7 +227,7 @@ extFloat80_t
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
    if ( sigExtra ) {
-        softfloat_exceptionFlags |= softfloat_flag_inexact;
+        state->exceptionFlags |= softfloat_flag_inexact;
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) {
            sig |= 1;
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 FEXCORE_PRESERVE_ALL_ATTR
 float32_t
- softfloat_roundPackToF32( bool sign, int_fast16_t exp, uint_fast32_t sig )
+ softfloat_roundPackToF32( struct softfloat_state *state, bool sign, int_fast16_t exp, uint_fast32_t sig )
 {
    uint_fast8_t roundingMode;
    bool roundNearEven;
@@ -53,7 +53,7 @@ float32_t

    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
-    roundingMode = softfloat_roundingMode;
+    roundingMode = state->roundingMode;
    roundNearEven = (roundingMode == softfloat_round_near_even);
    roundIncrement = 0x40;
    if ( ! roundNearEven && (roundingMode != softfloat_round_near_maxMag) ) {
@@ -71,19 +71,19 @@ float32_t
            /*----------------------------------------------------------------
            *----------------------------------------------------------------*/
            isTiny =
-                (softfloat_detectTininess == softfloat_tininess_beforeRounding)
+                (state->detectTininess == softfloat_tininess_beforeRounding)
                    || (exp < -1) || (sig + roundIncrement < 0x80000000);
            sig = softfloat_shiftRightJam32( sig, -exp );
            exp = 0;
            roundBits = sig & 0x7F;
            if ( isTiny && roundBits ) {
-                softfloat_raiseFlags( softfloat_flag_underflow );
+                softfloat_raiseFlags( state, softfloat_flag_underflow );
            }
        } else if ( (0xFD < exp) || (0x80000000 <= sig + roundIncrement) ) {
            /*----------------------------------------------------------------
            *----------------------------------------------------------------*/
            softfloat_raiseFlags(
-                softfloat_flag_overflow | softfloat_flag_inexact );
+                state, softfloat_flag_overflow | softfloat_flag_inexact );
            uiZ = packToF32UI( sign, 0xFF, 0 ) - ! roundIncrement;
            goto uiZ;
        }
@@ -92,7 +92,7 @@ float32_t
    *------------------------------------------------------------------------*/
    sig = (sig + roundIncrement)>>7;
    if ( roundBits ) {
-        softfloat_exceptionFlags |= softfloat_flag_inexact;
+        state->exceptionFlags |= softfloat_flag_inexact;
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) {
            sig |= 1;
@@ -42,7 +42,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 FEXCORE_PRESERVE_ALL_ATTR
 float64_t
- softfloat_roundPackToF64( bool sign, int_fast16_t exp, uint_fast64_t sig )
+ softfloat_roundPackToF64( struct softfloat_state *state, bool sign, int_fast16_t exp, uint_fast64_t sig )
 {
    uint_fast8_t roundingMode;
    bool roundNearEven;
@@ -53,7 +53,7 @@ float64_t

    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
-    roundingMode = softfloat_roundingMode;
+    roundingMode = state->roundingMode;
    roundNearEven = (roundingMode == softfloat_round_near_even);
    roundIncrement = 0x200;
    if ( ! roundNearEven && (roundingMode != softfloat_round_near_maxMag) ) {
@@ -71,14 +71,14 @@ float64_t
            /*----------------------------------------------------------------
            *----------------------------------------------------------------*/
            isTiny =
-                (softfloat_detectTininess == softfloat_tininess_beforeRounding)
+                (state->detectTininess == softfloat_tininess_beforeRounding)
                    || (exp < -1)
                    || (sig + roundIncrement < UINT64_C( 0x8000000000000000 ));
            sig = softfloat_shiftRightJam64( sig, -exp );
            exp = 0;
            roundBits = sig & 0x3FF;
            if ( isTiny && roundBits ) {
-                softfloat_raiseFlags( softfloat_flag_underflow );
+                softfloat_raiseFlags( state, softfloat_flag_underflow );
            }
        } else if (
            (0x7FD < exp)
@@ -87,7 +87,7 @@ float64_t
            /*----------------------------------------------------------------
            *----------------------------------------------------------------*/
            softfloat_raiseFlags(
-                softfloat_flag_overflow | softfloat_flag_inexact );
+                state, softfloat_flag_overflow | softfloat_flag_inexact );
            uiZ = packToF64UI( sign, 0x7FF, 0 ) - ! roundIncrement;
            goto uiZ;
        }
@@ -96,7 +96,7 @@ float64_t
    *------------------------------------------------------------------------*/
    sig = (sig + roundIncrement)>>10;
    if ( roundBits ) {
-        softfloat_exceptionFlags |= softfloat_flag_inexact;
+        state->exceptionFlags |= softfloat_flag_inexact;
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) {
            sig |= 1;
@@ -44,7 +44,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 int_fast32_t
 softfloat_roundToI32(
-     bool sign, uint_fast64_t sig, uint_fast8_t roundingMode, bool exact )
+     struct softfloat_state *state, bool sign, uint_fast64_t sig, uint_fast8_t roundingMode, bool exact )
 {
    uint_fast16_t roundIncrement, roundBits;
    uint_fast32_t sig32;
@@ -86,13 +86,13 @@ int_fast32_t
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) z |= 1;
 #endif
-        if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
+        if ( exact ) state->exceptionFlags |= softfloat_flag_inexact;
    }
    return z;
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 invalid:
-    softfloat_raiseFlags( softfloat_flag_invalid );
+    softfloat_raiseFlags( state, softfloat_flag_invalid );
    return sign ? i32_fromNegOverflow : i32_fromPosOverflow;

 }
@@ -44,6 +44,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 FEXCORE_PRESERVE_ALL_ATTR
 int_fast64_t
 softfloat_roundToI64(
+     struct softfloat_state *state,
     bool sign,
     uint_fast64_t sig,
     uint_fast64_t sigExtra,
@@ -89,13 +90,13 @@ int_fast64_t
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) z |= 1;
 #endif
-        if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
+        if ( exact ) state->exceptionFlags |= softfloat_flag_inexact;
    }
    return z;
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 invalid:
-    softfloat_raiseFlags( softfloat_flag_invalid );
+    softfloat_raiseFlags( state, softfloat_flag_invalid );
    return sign ? i64_fromNegOverflow : i64_fromPosOverflow;

 }
@@ -43,6 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 uint_fast64_t
 softfloat_roundToUI64(
+     struct softfloat_state *state,
     bool sign,
     uint_fast64_t sig,
     uint_fast64_t sigExtra,
@@ -84,13 +85,13 @@ uint_fast64_t
 #ifdef SOFTFLOAT_ROUND_ODD
        if ( roundingMode == softfloat_round_odd ) sig |= 1;
 #endif
-        if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
+        if ( exact ) state->exceptionFlags |= softfloat_flag_inexact;
    }
    return sig;
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 invalid:
-    softfloat_raiseFlags( softfloat_flag_invalid );
+    softfloat_raiseFlags( state, softfloat_flag_invalid );
    return sign ? ui64_fromNegOverflow : ui64_fromPosOverflow;

 }
@@ -43,6 +43,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 extFloat80_t
 softfloat_subMagsExtF80(
+     struct softfloat_state *state,
     uint_fast16_t uiA64,
     uint_fast64_t uiA0,
     uint_fast16_t uiB64,
@@ -77,7 +78,7 @@ extFloat80_t
        if ( (sigA | sigB) & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
            goto propagateNaN;
        }
-        softfloat_raiseFlags( softfloat_flag_invalid );
+        softfloat_raiseFlags( state, softfloat_flag_invalid );
        uiZ64 = defaultNaNExtF80UI64;
        uiZ0  = defaultNaNExtF80UI0;
        goto uiZ;
@@ -90,7 +91,7 @@ extFloat80_t
    if ( sigB < sigA ) goto aBigger;
    if ( sigA < sigB ) goto bBigger;
    uiZ64 =
-        packToExtF80UI64( (softfloat_roundingMode == softfloat_round_min), 0 );
+        packToExtF80UI64( (state->roundingMode == softfloat_round_min), 0 );
    uiZ0 = 0;
    goto uiZ;
    /*------------------------------------------------------------------------
@@ -142,11 +143,11 @@ extFloat80_t
 normRoundPack:
    return
        softfloat_normRoundPackToExtF80(
-            signZ, expZ, sig128.v64, sig128.v0, extF80_roundingPrecision );
+            state, signZ, expZ, sig128.v64, sig128.v0, state->roundingPrecision );
    /*------------------------------------------------------------------------
    *------------------------------------------------------------------------*/
 propagateNaN:
-    uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
+    uiZ = softfloat_propagateNaNExtF80UI( state, uiA64, uiA0, uiB64, uiB0 );
    uiZ64 = uiZ.v64;
    uiZ0  = uiZ.v0;
 uiZ:
@@ -50,50 +50,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <stdint.h>
 #include "softfloat_types.h"

-#ifndef THREAD_LOCAL
-#define THREAD_LOCAL
-#endif
-
-/*----------------------------------------------------------------------------
-| Software floating-point underflow tininess-detection mode.
-*----------------------------------------------------------------------------*/
-extern THREAD_LOCAL uint_fast8_t softfloat_detectTininess;
-enum {
-    softfloat_tininess_beforeRounding = 0,
-    softfloat_tininess_afterRounding  = 1
-};
-
-/*----------------------------------------------------------------------------
-| Software floating-point rounding mode.  (Mode "odd" is supported only if
-| SoftFloat is compiled with macro 'SOFTFLOAT_ROUND_ODD' defined.)
-*----------------------------------------------------------------------------*/
-extern THREAD_LOCAL uint_fast8_t softfloat_roundingMode;
-enum {
-    softfloat_round_near_even   = 0,
-    softfloat_round_minMag      = 1,
-    softfloat_round_min         = 2,
-    softfloat_round_max         = 3,
-    softfloat_round_near_maxMag = 4,
-    softfloat_round_odd         = 6
-};
-
-/*----------------------------------------------------------------------------
-| Software floating-point exception flags.
-*----------------------------------------------------------------------------*/
-extern THREAD_LOCAL uint_fast8_t softfloat_exceptionFlags;
-enum {
-    softfloat_flag_inexact   =  1,
-    softfloat_flag_underflow =  2,
-    softfloat_flag_overflow  =  4,
-    softfloat_flag_infinite  =  8,
-    softfloat_flag_invalid   = 16
-};
-
 /*----------------------------------------------------------------------------
 | Routine to raise any or all of the software floating-point exception flags.
 *----------------------------------------------------------------------------*/
 FEXCORE_PRESERVE_ALL_ATTR
-void softfloat_raiseFlags( uint_fast8_t );
+void softfloat_raiseFlags( struct softfloat_state *, uint_fast8_t );

 /*----------------------------------------------------------------------------
 | Integer-to-floating-point conversion routines.
@@ -187,7 +148,7 @@ float16_t f32_to_f16( float32_t );
 float64_t f32_to_f64( float32_t );
 #ifdef SOFTFLOAT_FAST_INT64
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t f32_to_extF80( float32_t );
+extFloat80_t f32_to_extF80( struct softfloat_state *, float32_t );
 float128_t f32_to_f128( float32_t );
 #endif
 void f32_to_extF80M( float32_t, extFloat80_t * );
@@ -223,7 +184,7 @@ float16_t f64_to_f16( float64_t );
 float32_t f64_to_f32( float64_t );
 #ifdef SOFTFLOAT_FAST_INT64
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t f64_to_extF80( float64_t );
+extFloat80_t f64_to_extF80( struct softfloat_state *, float64_t );
 float128_t f64_to_f128( float64_t );
 #endif
 void f64_to_extF80M( float64_t, extFloat80_t * );
@@ -244,53 +205,47 @@ bool f64_le_quiet( float64_t, float64_t );
 bool f64_lt_quiet( float64_t, float64_t );
 bool f64_isSignalingNaN( float64_t );

-/*----------------------------------------------------------------------------
-| Rounding precision for 80-bit extended double-precision floating-point.
-| Valid values are 32, 64, and 80.
-*----------------------------------------------------------------------------*/
-extern THREAD_LOCAL uint_fast8_t extF80_roundingPrecision;
-
 /*----------------------------------------------------------------------------
 | 80-bit extended double-precision floating-point operations.
 *----------------------------------------------------------------------------*/
 #ifdef SOFTFLOAT_FAST_INT64
 uint_fast32_t extF80_to_ui32( extFloat80_t, uint_fast8_t, bool );
 FEXCORE_PRESERVE_ALL_ATTR
-uint_fast64_t extF80_to_ui64( extFloat80_t, uint_fast8_t, bool );
+uint_fast64_t extF80_to_ui64( struct softfloat_state *, extFloat80_t, uint_fast8_t, bool );
 FEXCORE_PRESERVE_ALL_ATTR
-int_fast32_t extF80_to_i32( extFloat80_t, uint_fast8_t, bool );
+int_fast32_t extF80_to_i32( struct softfloat_state *, extFloat80_t, uint_fast8_t, bool );
 FEXCORE_PRESERVE_ALL_ATTR
-int_fast64_t extF80_to_i64( extFloat80_t, uint_fast8_t, bool );
+int_fast64_t extF80_to_i64( struct softfloat_state *, extFloat80_t, uint_fast8_t, bool );
 uint_fast32_t extF80_to_ui32_r_minMag( extFloat80_t, bool );
 uint_fast64_t extF80_to_ui64_r_minMag( extFloat80_t, bool );
 int_fast32_t extF80_to_i32_r_minMag( extFloat80_t, bool );
 int_fast64_t extF80_to_i64_r_minMag( extFloat80_t, bool );
 float16_t extF80_to_f16( extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-float32_t extF80_to_f32( extFloat80_t );
+float32_t extF80_to_f32( struct softfloat_state *, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-float64_t extF80_to_f64( extFloat80_t );
+float64_t extF80_to_f64( struct softfloat_state *, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-float128_t extF80_to_f128( extFloat80_t );
+float128_t extF80_to_f128( struct softfloat_state *, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_roundToInt( extFloat80_t, uint_fast8_t, bool );
+extFloat80_t extF80_roundToInt( struct softfloat_state *, extFloat80_t, uint_fast8_t, bool );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_add( extFloat80_t, extFloat80_t );
+extFloat80_t extF80_add( struct softfloat_state *, extFloat80_t, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_sub( extFloat80_t, extFloat80_t );
+extFloat80_t extF80_sub( struct softfloat_state *, extFloat80_t, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_mul( extFloat80_t, extFloat80_t );
+extFloat80_t extF80_mul( struct softfloat_state *, extFloat80_t, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_div( extFloat80_t, extFloat80_t );
+extFloat80_t extF80_div( struct softfloat_state *, extFloat80_t, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_rem( extFloat80_t, extFloat80_t );
+extFloat80_t extF80_rem( struct softfloat_state *, extFloat80_t, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t extF80_sqrt( extFloat80_t );
+extFloat80_t extF80_sqrt( struct softfloat_state *, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-bool extF80_eq( extFloat80_t, extFloat80_t );
+bool extF80_eq( struct softfloat_state *, extFloat80_t, extFloat80_t );
 bool extF80_le( extFloat80_t, extFloat80_t );
 FEXCORE_PRESERVE_ALL_ATTR
-bool extF80_lt( extFloat80_t, extFloat80_t );
+bool extF80_lt( struct softfloat_state *, extFloat80_t, extFloat80_t );
 bool extF80_eq_signaling( extFloat80_t, extFloat80_t );
 bool extF80_le_quiet( extFloat80_t, extFloat80_t );
 bool extF80_lt_quiet( extFloat80_t, extFloat80_t );
@@ -341,7 +296,7 @@ float16_t f128_to_f16( float128_t );
 float32_t f128_to_f32( float128_t );
 float64_t f128_to_f64( float128_t );
 FEXCORE_PRESERVE_ALL_ATTR
-extFloat80_t f128_to_extF80( float128_t );
+extFloat80_t f128_to_extF80( struct softfloat_state *, float128_t );
 float128_t f128_roundToInt( float128_t, uint_fast8_t, bool );
 float128_t f128_add( float128_t, float128_t );
 float128_t f128_sub( float128_t, float128_t );
@@ -44,10 +44,10 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | should be simply `softfloat_exceptionFlags |= flags;'.
 *----------------------------------------------------------------------------*/
 FEXCORE_PRESERVE_ALL_ATTR
-void softfloat_raiseFlags( uint_fast8_t flags )
+void softfloat_raiseFlags( struct softfloat_state *state, uint_fast8_t flags )
 {

-    softfloat_exceptionFlags |= flags;
+    state->exceptionFlags |= flags;

 }

@@ -1,52 +0,0 @@
-
-/*============================================================================
-
-This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
-Package, Release 3e, by John R. Hauser.
-
-Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
-California.  All Rights Reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice,
-    this list of conditions, and the following disclaimer.
-
- 2. Redistributions in binary form must reproduce the above copyright notice,
-    this list of conditions, and the following disclaimer in the documentation
-    and/or other materials provided with the distribution.
-
- 3. Neither the name of the University nor the names of its contributors may
-    be used to endorse or promote products derived from this software without
-    specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
-EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
-DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-=============================================================================*/
-
-#include <stdint.h>
-#include "platform.h"
-#include "internals.h"
-#include "specialize.h"
-#include "softfloat.h"
-
-#ifndef THREAD_LOCAL
-#define THREAD_LOCAL
-#endif
-
-THREAD_LOCAL uint_fast8_t softfloat_roundingMode = softfloat_round_near_even;
-THREAD_LOCAL uint_fast8_t softfloat_detectTininess = init_detectTininess;
-THREAD_LOCAL uint_fast8_t softfloat_exceptionFlags = 0;
-
-THREAD_LOCAL uint_fast8_t extF80_roundingPrecision = 80;
-
@@ -77,5 +77,50 @@ struct extFloat80M { uint16_t signExp; uint64_t signif; };
 *----------------------------------------------------------------------------*/
 typedef struct extFloat80M extFloat80_t;

+enum {
+    softfloat_tininess_beforeRounding = 0,
+    softfloat_tininess_afterRounding  = 1
+};
+
+enum {
+    softfloat_round_near_even   = 0,
+    softfloat_round_minMag      = 1,
+    softfloat_round_min         = 2,
+    softfloat_round_max         = 3,
+    softfloat_round_near_maxMag = 4,
+    softfloat_round_odd         = 6
+};
+
+enum {
+    softfloat_flag_inexact   =  1,
+    softfloat_flag_underflow =  2,
+    softfloat_flag_overflow  =  4,
+    softfloat_flag_infinite  =  8,
+    softfloat_flag_invalid   = 16
+};
+
+struct softfloat_state {
+/*----------------------------------------------------------------------------
+| Software floating-point underflow tininess-detection mode.
+*----------------------------------------------------------------------------*/
+uint8_t detectTininess; /* = init_detectTininess */
+/*----------------------------------------------------------------------------
+| Software floating-point rounding mode.  (Mode "odd" is supported only if
+| SoftFloat is compiled with macro 'SOFTFLOAT_ROUND_ODD' defined.)
+*----------------------------------------------------------------------------*/
+uint8_t roundingMode; /* = softfloat_round_near_even */
+
+/*----------------------------------------------------------------------------
+| Software floating-point exception flags.
+*----------------------------------------------------------------------------*/
+uint8_t exceptionFlags; /* = 0 */
+
+/*----------------------------------------------------------------------------
+| Rounding precision for 80-bit extended double-precision floating-point.
+| Valid values are 32, 64, and 80.
+*----------------------------------------------------------------------------*/
+uint8_t roundingPrecision; /* = 80 */
+};
+
 #endif

@@ -136,7 +136,7 @@ uint_fast16_t
 | exception is raised.
 *----------------------------------------------------------------------------*/
 FEXCORE_PRESERVE_ALL_ATTR
-void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr );
+void softfloat_f32UIToCommonNaN( struct softfloat_state *, uint_fast32_t uiA, struct commonNaN *zPtr );

 /*----------------------------------------------------------------------------
 | Converts the common NaN pointed to by 'aPtr' into a 32-bit floating-point
@@ -173,7 +173,7 @@ uint_fast32_t
 | exception is raised.
 *----------------------------------------------------------------------------*/
 FEXCORE_PRESERVE_ALL_ATTR
-void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr );
+void softfloat_f64UIToCommonNaN( struct softfloat_state *, uint_fast64_t uiA, struct commonNaN *zPtr );

 /*----------------------------------------------------------------------------
 | Converts the common NaN pointed to by 'aPtr' into a 64-bit floating-point
@@ -222,7 +222,7 @@ uint_fast64_t
 FEXCORE_PRESERVE_ALL_ATTR
 void
 softfloat_extF80UIToCommonNaN(
-     uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );
+     struct softfloat_state *, uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );

 /*----------------------------------------------------------------------------
 | Converts the common NaN pointed to by 'aPtr' into an 80-bit extended
@@ -244,6 +244,7 @@ struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr );
 FEXCORE_PRESERVE_ALL_ATTR
 struct uint128
 softfloat_propagateNaNExtF80UI(
+     struct softfloat_state *,
     uint_fast16_t uiA64,
     uint_fast64_t uiA0,
     uint_fast16_t uiB64,
@@ -274,7 +275,7 @@ struct uint128
 FEXCORE_PRESERVE_ALL_ATTR
 void
 softfloat_f128UIToCommonNaN(
-     uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );
+     struct softfloat_state *, uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );

 /*----------------------------------------------------------------------------
 | Converts the common NaN pointed to by 'aPtr' into a 128-bit floating-point
@@ -63,7 +63,7 @@ struct FEX_PACKED X80SoftFloat {
  }

  // Ops
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FADD(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FADD(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
    asm(R"(
@@ -79,11 +79,11 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_add(lhs, rhs);
+    return extF80_add(state, lhs, rhs);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSUB(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSUB(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
    asm(R"(
@@ -99,11 +99,11 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_sub(lhs, rhs);
+    return extF80_sub(state, lhs, rhs);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FMUL(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FMUL(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
    asm(R"(
@@ -119,11 +119,11 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_mul(lhs, rhs);
+    return extF80_mul(state, lhs, rhs);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FDIV(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FDIV(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
    asm(R"(
@@ -139,11 +139,11 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_div(lhs, rhs);
+    return extF80_div(state, lhs, rhs);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FREM(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FREM(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
 #if defined(DEBUG_X86_FLOAT)
    BIGFLOAT Result;
    asm(R"(
@@ -160,11 +160,11 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_rem(lhs, rhs);
+    return extF80_rem(state, lhs, rhs);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FREM1(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FREM1(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
 #if defined(DEBUG_X86_FLOAT)
    BIGFLOAT Result;
    asm(R"(
@@ -181,16 +181,16 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_rem(lhs, rhs);
+    return extF80_rem(state, lhs, rhs);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FRNDINT(const X80SoftFloat& lhs) {
-    return extF80_roundToInt(lhs, softfloat_roundingMode, false);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FRNDINT(softfloat_state* state, const X80SoftFloat& lhs) {
+    return extF80_roundToInt(state, lhs, state->roundingMode, false);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FRNDINT(const X80SoftFloat& lhs, uint_fast8_t RoundMode) {
-    return extF80_roundToInt(lhs, RoundMode, false);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FRNDINT(softfloat_state* state, const X80SoftFloat& lhs, uint_fast8_t RoundMode) {
+    return extF80_roundToInt(state, lhs, RoundMode, false);
  }

  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FXTRACT_SIG(const X80SoftFloat& lhs) {
@@ -237,13 +237,14 @@ struct FEX_PACKED X80SoftFloat {
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static void FCMP(const X80SoftFloat& lhs, const X80SoftFloat& rhs, bool* eq, bool* lt, bool* nan) {
-    *eq = extF80_eq(lhs, rhs);
-    *lt = extF80_lt(lhs, rhs);
+  FEXCORE_PRESERVE_ALL_ATTR static void
+  FCMP(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs, bool* eq, bool* lt, bool* nan) {
+    *eq = extF80_eq(state, lhs, rhs);
+    *lt = extF80_lt(state, lhs, rhs);
    *nan = IsNan(lhs) || IsNan(rhs);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSCALE(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSCALE(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
    WARN_ONCE_FMT("x87: Application used FSCALE which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -261,16 +262,16 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    X80SoftFloat Int = FRNDINT(rhs, softfloat_round_minMag);
-    LIBRARY_PRECISION Src2_d = Int;
+    X80SoftFloat Int = FRNDINT(state, rhs, softfloat_round_minMag);
+    LIBRARY_PRECISION Src2_d = Int.ToFMax(state);
    Src2_d = exp2l(Src2_d);
-    X80SoftFloat Src2_X80 = Src2_d;
-    X80SoftFloat Result = extF80_mul(lhs, Src2_X80);
+    X80SoftFloat Src2_X80(state, Src2_d);
+    X80SoftFloat Result = extF80_mul(state, lhs, Src2_X80);
    return Result;
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat F2XM1(const X80SoftFloat& lhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat F2XM1(softfloat_state* state, const X80SoftFloat& lhs) {
    WARN_ONCE_FMT("x87: Application used F2XM1 which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -286,14 +287,14 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    LIBRARY_PRECISION Src1_d = lhs;
+    LIBRARY_PRECISION Src1_d = lhs.ToFMax(state);
    LIBRARY_PRECISION Result = exp2l(Src1_d);
    Result -= 1.0;
-    return Result;
+    return X80SoftFloat(state, Result);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FYL2X(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FYL2X(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
    WARN_ONCE_FMT("x87: Application used FYL2X which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -310,14 +311,14 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    LIBRARY_PRECISION Src1_d = lhs;
-    LIBRARY_PRECISION Src2_d = rhs;
+    LIBRARY_PRECISION Src1_d = lhs.ToFMax(state);
+    LIBRARY_PRECISION Src2_d = rhs.ToFMax(state);
    LIBRARY_PRECISION Tmp = Src2_d * log2l(Src1_d);
-    return Tmp;
+    return X80SoftFloat(state, Tmp);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FATAN(const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FATAN(softfloat_state* state, const X80SoftFloat& lhs, const X80SoftFloat& rhs) {
    WARN_ONCE_FMT("x87: Application used FATAN which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -334,14 +335,14 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    LIBRARY_PRECISION Src1_d = lhs;
-    LIBRARY_PRECISION Src2_d = rhs;
+    LIBRARY_PRECISION Src1_d = lhs.ToFMax(state);
+    LIBRARY_PRECISION Src2_d = rhs.ToFMax(state);
    LIBRARY_PRECISION Tmp = atan2l(Src1_d, Src2_d);
-    return Tmp;
+    return X80SoftFloat(state, Tmp);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FTAN(const X80SoftFloat& lhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FTAN(softfloat_state* state, const X80SoftFloat& lhs) {
    WARN_ONCE_FMT("x87: Application used FTAN which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -358,13 +359,13 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    LIBRARY_PRECISION Src_d = lhs;
+    LIBRARY_PRECISION Src_d = lhs.ToFMax(state);
    Src_d = tanl(Src_d);
-    return Src_d;
+    return X80SoftFloat(state, Src_d);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSIN(const X80SoftFloat& lhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSIN(softfloat_state* state, const X80SoftFloat& lhs) {
    WARN_ONCE_FMT("x87: Application used FSIN which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -380,13 +381,13 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    LIBRARY_PRECISION Src_d = lhs;
+    LIBRARY_PRECISION Src_d = lhs.ToFMax(state);
    Src_d = sinl(Src_d);
-    return Src_d;
+    return X80SoftFloat(state, Src_d);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FCOS(const X80SoftFloat& lhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FCOS(softfloat_state* state, const X80SoftFloat& lhs) {
    WARN_ONCE_FMT("x87: Application used FCOS which may have accuracy problems");
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
@@ -402,13 +403,13 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    LIBRARY_PRECISION Src_d = lhs;
+    LIBRARY_PRECISION Src_d = lhs.ToFMax(state);
    Src_d = cosl(Src_d);
-    return Src_d;
+    return X80SoftFloat(state, Src_d);
 #endif
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSQRT(const X80SoftFloat& lhs) {
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat FSQRT(softfloat_state* state, const X80SoftFloat& lhs) {
 #ifdef DEBUG_X86_FLOAT
    BIGFLOAT Result;
    asm(R"(
@@ -423,62 +424,55 @@ struct FEX_PACKED X80SoftFloat {

    return Result;
 #else
-    return extF80_sqrt(lhs);
+    return extF80_sqrt(state, lhs);
 #endif
  }

-  operator float() const {
-    const float32_t Result = extF80_to_f32(*this);
+  float ToF32(softfloat_state* state) const {
+    const float32_t Result = extF80_to_f32(state, *this);
    return FEXCore::BitCast<float>(Result);
  }

-  operator double() const {
-    const float64_t Result = extF80_to_f64(*this);
+  double ToF64(softfloat_state* state) const {
+    const float64_t Result = extF80_to_f64(state, *this);
    return FEXCore::BitCast<double>(Result);
  }

-#ifndef _WIN32
-  operator BIGFLOAT() const {
+  LIBRARY_PRECISION ToFMax(softfloat_state* state) const {
+#ifdef _WIN32
+    return ToF64(state);
+#else
 #if BIGFLOATSIZE == 16
-    const float128_t Result = extF80_to_f128(*this);
+    const float128_t Result = extF80_to_f128(state, *this);
    return FEXCore::BitCast<BIGFLOAT>(Result);
 #else
    BIGFLOAT result {};
    memcpy(&result, this, sizeof(result));
    return result;
 #endif
-  }
 #endif
+  }

-  operator int16_t() const {
-    auto rv = extF80_to_i32(*this, softfloat_roundingMode, false);
-    if (rv > INT16_MAX) {
-      return INT16_MAX;
-    } else if (rv < INT16_MIN) {
+  int16_t ToI16(softfloat_state* state) const {
+    auto rv = extF80_to_i32(state, *this, state->roundingMode, false);
+    if (rv > INT16_MAX || rv < INT16_MIN) {
+      ///< Indefinite value for 16-bit conversions.
      return INT16_MIN;
    } else {
      return rv;
    }
  }

-  operator int32_t() const {
-    return extF80_to_i32(*this, softfloat_roundingMode, false);
+  int32_t ToI32(softfloat_state* state) const {
+    return extF80_to_i32(state, *this, state->roundingMode, false);
  }

-  operator int64_t() const {
-    return extF80_to_i64(*this, softfloat_roundingMode, false);
+  int64_t ToI64(softfloat_state* state) const {
+    return extF80_to_i64(state, *this, state->roundingMode, false);
  }

-  operator uint64_t() const {
-    return extF80_to_ui64(*this, softfloat_roundingMode, false);
-  }
-
-  void operator=(const float rhs) {
-    *this = f32_to_extF80(FEXCore::BitCast<float32_t>(rhs));
-  }
-
-  void operator=(const double rhs) {
-    *this = f64_to_extF80(FEXCore::BitCast<float64_t>(rhs));
+  uint64_t ToUI64(softfloat_state* state) const {
+    return extF80_to_ui64(state, *this, state->roundingMode, false);
  }

  void operator=(const int16_t rhs) {
@@ -509,18 +503,18 @@ struct FEX_PACKED X80SoftFloat {
    Sign = rhs.signExp >> 15;
  }

-  X80SoftFloat(const float rhs) {
-    *this = f32_to_extF80(FEXCore::BitCast<float32_t>(rhs));
+  X80SoftFloat(softfloat_state* state, const float rhs) {
+    *this = f32_to_extF80(state, FEXCore::BitCast<float32_t>(rhs));
  }

-  X80SoftFloat(const double rhs) {
-    *this = f64_to_extF80(FEXCore::BitCast<float64_t>(rhs));
+  X80SoftFloat(softfloat_state* state, const double rhs) {
+    *this = f64_to_extF80(state, FEXCore::BitCast<float64_t>(rhs));
  }

 #ifndef _WIN32
-  X80SoftFloat(BIGFLOAT rhs) {
+  X80SoftFloat(softfloat_state* state, BIGFLOAT rhs) {
 #if BIGFLOATSIZE == 16
-    *this = f128_to_extF80(FEXCore::BitCast<float128_t>(rhs));
+    *this = f128_to_extF80(state, FEXCore::BitCast<float128_t>(rhs));
 #else
    *this = FEXCore::BitCast<long double>(rhs);
 #endif
@@ -50,8 +50,6 @@
          "DISABLESVE": "disablesve",
          "ENABLEAVX": "enableavx",
          "DISABLEAVX": "disableavx",
-          "ENABLEAVX2": "enableavx2",
-          "DISABLEAVX2": "disableavx2",
          "ENABLEAFP": "enableafp",
          "DISABLEAFP": "disableafp",
          "ENABLELRCPC": "enablelrcpc",
@@ -78,6 +76,8 @@
          "DISABLECRYPTO": "disablecrypto",
          "ENABLERPRES": "enablerpres",
          "DISABLERPRES": "disablerpres",
+          "ENABLESVEBITPERM": "enablesvebitperm",
+          "DISABLESVEBITPERM": "disablesvebitperm",
          "ENABLEPRESERVEALLABI": "enablepreserveallabi",
          "DISABLEPRESERVEALLABI": "disablepreserveallabi"
        },
@@ -86,7 +86,6 @@
          "\toff: Default CPU features queried from CPU features",
          "\t{enable,disable}sve: Will force enable or disable sve even if the host doesn't support it",
          "\t{enable,disable}avx: Will force enable or disable avx even if the host doesn't support it",
-          "\t{enable,disable}avx2: Will force enable or disable avx2 even if the host doesn't support it",
          "\t{enable,disable}afp: Will force enable or disable afp even if the host doesn't support it",
          "\t{enable,disable}lrcpc: Will force enable or disable lrcpc even if the host doesn't support it",
          "\t{enable,disable}lrcpc2: Will force enable or disable lrcpc2 even if the host doesn't support it",
@@ -100,6 +99,7 @@
          "\t{enable,disable}flagm2: Will force enable or disable flagm2 even if the host doesn't support it",
          "\t{enable,disable}crypto: Will force enable or disable crypto extensions even if the host doesn't support it",
          "\t{enable,disable}rpres: Will force enable or disable rpres even if the host doesn't support it",
+          "\t{enable,disable}svebitperm: Will force enable or disable svebitperm even if the host doesn't support it",
          "\t{enable,disable}preserveallabi: Will force enable or disable preserve_all abi even if the host doesn't support it"
        ]
      },
@@ -6,6 +6,7 @@
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/Context.h>
 #include <FEXCore/Core/CPUID.h>
+#include <FEXCore/Core/HostFeatures.h>
 #include <FEXCore/Core/SignalDelegator.h>
 #include "FEXCore/Debug/InternalThreadState.h"

@@ -18,8 +19,8 @@ void InitializeStaticTables(OperatingMode Mode) {
  IR::InstallOpcodeHandlers(Mode);
 }

-fextl::unique_ptr<FEXCore::Context::Context> FEXCore::Context::Context::CreateNewContext() {
-  return fextl::make_unique<FEXCore::Context::ContextImpl>();
+fextl::unique_ptr<FEXCore::Context::Context> FEXCore::Context::Context::CreateNewContext(const FEXCore::HostFeatures& Features) {
+  return fextl::make_unique<FEXCore::Context::ContextImpl>(Features);
 }

 void FEXCore::Context::ContextImpl::SetExitHandler(ExitHandler handler) {
@@ -42,10 +43,6 @@ void FEXCore::Context::ContextImpl::SetCustomCPUBackendFactory(CustomCPUFactoryT
  CustomCPUFactory = std::move(Factory);
 }

-HostFeatures FEXCore::Context::ContextImpl::GetHostFeatures() const {
-  return HostFeatures;
-}
-
 void FEXCore::Context::ContextImpl::SetSignalDelegator(FEXCore::SignalDelegator* _SignalDelegation) {
  SignalDelegation = _SignalDelegation;
 }
@@ -96,14 +96,15 @@ public:

  void SetCustomCPUBackendFactory(CustomCPUFactoryType Factory) override;

-  HostFeatures GetHostFeatures() const override;
-
  void HandleCallback(FEXCore::Core::InternalThreadState* Thread, uint64_t RIP) override;

  uint64_t RestoreRIPFromHostPC(FEXCore::Core::InternalThreadState* Thread, uint64_t HostPC) override;
  uint32_t ReconstructCompactedEFLAGS(FEXCore::Core::InternalThreadState* Thread, bool WasInJIT, uint64_t* HostGPRs, uint64_t PSTATE) override;
  void SetFlagsFromCompactedEFLAGS(FEXCore::Core::InternalThreadState* Thread, uint32_t EFLAGS) override;

+  void ReconstructXMMRegisters(const FEXCore::Core::InternalThreadState* Thread, __uint128_t* XMM_Low, __uint128_t* YMM_High) override;
+  void SetXMMRegistersFromState(FEXCore::Core::InternalThreadState* Thread, const __uint128_t* XMM_Low, const __uint128_t* YMM_High) override;
+
  /**
   * @brief Used to create FEX thread objects in preparation for creating a true OS thread. Does set a TID or PID.
   *
@@ -192,7 +193,7 @@ public:
  // returns false if a handler was already registered
  CustomIRResult AddCustomIREntrypoint(uintptr_t Entrypoint, CustomIREntrypointHandler Handler, void* Creator = nullptr, void* Data = nullptr);

-  void AppendThunkDefinitions(const fextl::vector<FEXCore::IR::ThunkDefinition>& Definitions) override;
+  void AppendThunkDefinitions(std::span<const FEXCore::IR::ThunkDefinition> Definitions) override;

 public:
  friend class FEXCore::HLE::SyscallHandler;
@@ -261,7 +262,7 @@ public:
  SignalDelegator* SignalDelegation {};
  X86GeneratedCode X86CodeGen;

-  ContextImpl();
+  ContextImpl(const FEXCore::HostFeatures& Features);
  ~ContextImpl();

  static void ThreadRemoveCodeEntry(FEXCore::Core::InternalThreadState* Thread, uint64_t GuestRIP);
@@ -280,9 +281,6 @@ public:
  // Must be called from owning thread
  static void ThreadRemoveCodeEntryFromJit(FEXCore::Core::CpuStateFrame* Frame, uint64_t GuestRIP) {
    auto Thread = Frame->Thread;
-
-    LOGMAN_THROW_A_FMT(Thread->ThreadManager.GetTID() == FHU::Syscalls::gettid(), "Must be called from owning thread {}, not {}",
-                       Thread->ThreadManager.GetTID(), FHU::Syscalls::gettid());
    auto lk = GuardSignalDeferringSection(static_cast<ContextImpl*>(Thread->CTX)->CodeInvalidationMutex, Thread);

    ThreadRemoveCodeEntry(Thread, GuestRIP);
@@ -375,8 +373,6 @@ public:
    return ExitOnHLT;
  }

-  FEXCore::CPU::CPUBackendFeatures BackendFeatures;
-
 protected:
  void UpdateAtomicTSOEmulationConfig() {
    if (SupportsHardwareTSO) {
@@ -14,20 +14,18 @@
 #include <CodeEmitter/Emitter.h>
 #include <CodeEmitter/Registers.h>

+#ifdef VIXL_DISASSEMBLER
 #include <aarch64/cpu-aarch64.h>
 #include <aarch64/instructions-aarch64.h>
 #include <cpu-features.h>
 #include <utils-vixl.h>
+#endif

 #include <array>
 #include <tuple>
 #include <utility>

 namespace FEXCore::CPU {
-// Register x18 is unused in the current configuration.
-// This is due to it being a platform register on wine platforms.
-// TODO: Allow x18 register allocation on Linux in the future to gain one more register.
-
 namespace x64 {
 #ifndef _M_ARM_64EC
  // All but x19 and x29 are caller saved
@@ -353,8 +351,6 @@ Arm64Emitter::Arm64Emitter(FEXCore::Context::ContextImpl* ctx, void* EmissionPtr
  }
 #endif

-  CPU.SetUp();
-
  // Number of register available is dependent on what operating mode the proccess is in.
  if (EmitterCTX->Config.Is64BitMode()) {
    StaticRegisters = x64::SRA;
@@ -425,7 +421,7 @@ void Arm64Emitter::LoadConstant(ARMEmitter::Size s, ARMEmitter::Register Reg, ui
  if (RequiredMoveSegments > 1) {
    // Only try to use this path if the number of segments is > 1.
    // `movz` is better than `orr` since hardware will rename or merge if possible when `movz` is used.
-    const auto IsImm = vixl::aarch64::Assembler::IsImmLogical(Constant, RegSizeInBits(s));
+    const auto IsImm = ARMEmitter::Emitter::IsImmLogical(Constant, RegSizeInBits(s));
    if (IsImm) {
      orr(s, Reg, ARMEmitter::Reg::zr, Constant);
      if (NOPPad) {
@@ -462,7 +458,7 @@ void Arm64Emitter::LoadConstant(ARMEmitter::Size s, ARMEmitter::Register Reg, ui

  // If the aligned offset is within the 4GB window then we can use ADRP+ADD
  // and the number of move segments more than 1
-  if (RequiredMoveSegments > 1 && vixl::IsInt32(AlignedOffset)) {
+  if (RequiredMoveSegments > 1 && ARMEmitter::Emitter::IsInt32(AlignedOffset)) {
    // If this is 4k page aligned then we only need ADRP
    if ((AlignedOffset & 0xFFF) == 0) {
      adrp(Reg, AlignedOffset >> 12);
@@ -470,7 +466,7 @@ void Arm64Emitter::LoadConstant(ARMEmitter::Size s, ARMEmitter::Register Reg, ui
      // If the constant is within 1MB of PC then we can still use ADR to load in a single instruction
      // 21-bit signed integer here
      int64_t SmallOffset = static_cast<int64_t>(Constant) - static_cast<int64_t>(PC);
-      if (vixl::IsInt21(SmallOffset)) {
+      if (ARMEmitter::Emitter::IsInt21(SmallOffset)) {
        adr(Reg, SmallOffset);
      } else {
        // Need to use ADRP + ADD
@@ -574,12 +570,53 @@ void Arm64Emitter::PopCalleeSavedRegisters() {
  }
 }

+void Arm64Emitter::FillSpecialRegs(ARMEmitter::Register TmpReg, ARMEmitter::Register TmpReg2, bool SetFIZ, bool SetPredRegs) {
+#ifndef VIXL_SIMULATOR
+  if (EmitterCTX->HostFeatures.SupportsAFP) {
+    // Enable AFP features when filling JIT state.
+    mrs(TmpReg, ARMEmitter::SystemRegister::FPCR);
+
+    // Enable FPCR.NEP and FPCR.AH
+    // NEP(2): Changes ASIMD scalar instructions to insert in to the lower bits of the destination.
+    // AH(1):  Changes NaN behaviour in some instructions. Specifically fmin, fmax.
+    //
+    // Additional interesting AFP bits:
+    // FIZ(0): Flush Inputs to Zero
+    orr(ARMEmitter::Size::i64Bit, TmpReg, TmpReg,
+        (1U << 2) |   // NEP
+          (1U << 1)); // AH
+
+    if (SetFIZ) {
+      // Insert MXCSR.DAZ in to FIZ
+      ldr(TmpReg2.W(), STATE.R(), offsetof(FEXCore::Core::CPUState, mxcsr));
+      bfxil(ARMEmitter::Size::i64Bit, TmpReg, TmpReg2, 6, 1);
+    }
+
+    msr(ARMEmitter::SystemRegister::FPCR, TmpReg);
+  }
+#endif
+
+  if (SetPredRegs) {
+    // Set up predicate registers.
+    // We don't bother spilling these in SpillStaticRegs,
+    // since all that matters is we restore them on a fill.
+    // It's not a concern if they get trounced by something else.
+    if (EmitterCTX->HostFeatures.SupportsSVE256) {
+      ptrue(ARMEmitter::SubRegSize::i8Bit, PRED_TMP_32B, ARMEmitter::PredicatePattern::SVE_VL32);
+    }
+
+    if (EmitterCTX->HostFeatures.SupportsSVE128) {
+      ptrue(ARMEmitter::SubRegSize::i8Bit, PRED_TMP_16B, ARMEmitter::PredicatePattern::SVE_VL16);
+    }
+  }
+}
+
 void Arm64Emitter::SpillStaticRegs(ARMEmitter::Register TmpReg, bool FPRs, uint32_t GPRSpillMask, uint32_t FPRSpillMask) {
 #ifndef VIXL_SIMULATOR
  if (EmitterCTX->HostFeatures.SupportsAFP) {
    // Disable AFP features when spilling registers.
    //
-    // Disable FPCR.NEP and FPCR.AH
+    // Disable FPCR.NEP and FPCR.AH and FPCR.FIZ
    // NEP(2): Changes ASIMD scalar instructions to insert in to the lower bits of the destination.
    // AH(1):  Changes NaN behaviour in some instructions. Specifically fmin, fmax.
    //         Also interacts with RPRES to change reciprocal/rsqrt precision from 8-bit mantissa to 12-bit.
@@ -589,7 +626,8 @@ void Arm64Emitter::SpillStaticRegs(ARMEmitter::Register TmpReg, bool FPRs, uint3
    mrs(TmpReg, ARMEmitter::SystemRegister::FPCR);
    bic(ARMEmitter::Size::i64Bit, TmpReg, TmpReg,
        (1U << 2) |   // NEP
-          (1U << 1)); // AH
+          (1U << 1) | // AH
+          (1U << 0)); // FIZ
    msr(ARMEmitter::SystemRegister::FPCR, TmpReg);
  }
 #endif
@@ -628,7 +666,7 @@ void Arm64Emitter::SpillStaticRegs(ARMEmitter::Register TmpReg, bool FPRs, uint3
  }

  if (FPRs) {
-    if (EmitterCTX->HostFeatures.SupportsAVX) {
+    if (EmitterCTX->HostFeatures.SupportsAVX && EmitterCTX->HostFeatures.SupportsSVE256) {
      for (size_t i = 0; i < StaticFPRegisters.size(); i++) {
        const auto Reg = StaticFPRegisters[i];

@@ -667,37 +705,37 @@ void Arm64Emitter::SpillStaticRegs(ARMEmitter::Register TmpReg, bool FPRs, uint3
  }
 }

-void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRFillMask) {
-  ARMEmitter::Register TmpReg = ARMEmitter::Reg::r0;
-  LOGMAN_THROW_A_FMT(GPRFillMask != 0, "Must fill at least 1 GPR for a temp");
-  [[maybe_unused]] bool FoundRegister {};
-  for (auto Reg : StaticRegisters) {
-    if (((1U << Reg.Idx()) & GPRFillMask)) {
-      TmpReg = Reg;
-      FoundRegister = true;
-      break;
+void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRFillMask, std::optional<ARMEmitter::Register> OptionalReg,
+                                  std::optional<ARMEmitter::Register> OptionalReg2) {
+  auto FindTempReg = [this](uint32_t* GPRFillMask) -> std::optional<ARMEmitter::Register> {
+    for (auto Reg : StaticRegisters) {
+      if (((1U << Reg.Idx()) & *GPRFillMask)) {
+        *GPRFillMask &= ~(1U << Reg.Idx());
+        return std::make_optional(Reg);
+      }
    }
+    return std::nullopt;
+  };
+
+  LOGMAN_THROW_A_FMT(GPRFillMask != 0, "Must fill at least 2 GPRs for a temp");
+  uint32_t TempGPRFillMask = GPRFillMask;
+  if (!OptionalReg.has_value()) {
+    OptionalReg = FindTempReg(&TempGPRFillMask);
  }

-  LOGMAN_THROW_A_FMT(FoundRegister, "Didn't have an SRA register to use as a temporary while spilling!");
-
-#ifndef VIXL_SIMULATOR
-  if (EmitterCTX->HostFeatures.SupportsAFP) {
-    // Enable AFP features when filling JIT state.
-    LOGMAN_THROW_A_FMT(GPRFillMask != 0, "Must fill at least 1 GPR for a temp");
-    mrs(TmpReg, ARMEmitter::SystemRegister::FPCR);
-
-    // Enable FPCR.NEP and FPCR.AH
-    // NEP(2): Changes ASIMD scalar instructions to insert in to the lower bits of the destination.
-    // AH(1):  Changes NaN behaviour in some instructions. Specifically fmin, fmax.
-    //
-    // Additional interesting AFP bits:
-    // FIZ(0): Flush Inputs to Zero
-    orr(ARMEmitter::Size::i64Bit, TmpReg, TmpReg,
-        (1U << 2) |   // NEP
-          (1U << 1)); // AH
-    msr(ARMEmitter::SystemRegister::FPCR, TmpReg);
+  if (!OptionalReg2.has_value()) {
+    OptionalReg2 = FindTempReg(&TempGPRFillMask);
  }
+  LOGMAN_THROW_A_FMT(OptionalReg.has_value() && OptionalReg2.has_value(), "Didn't have an SRA register to use as a temporary while "
+                                                                          "spilling!");
+
+  auto TmpReg = *OptionalReg;
+  auto TmpReg2 = *OptionalReg2;
+
+#ifdef _M_ARM_64EC
+  // Load STATE in from the CPU area as x28 is not callee saved in the ARM64EC ABI.
+  ldr(TmpReg.X(), ARMEmitter::Reg::r18, TEB_CPU_AREA_OFFSET);
+  ldr(STATE, TmpReg, CPU_AREA_EMULATOR_DATA_OFFSET);
 #endif

  // Regardless of what GPRs/FPRs we're filling, we need to fill NZCV since it
@@ -708,18 +746,10 @@ void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRF
  ldr(TmpReg.W(), STATE.R(), offsetof(FEXCore::Core::CpuStateFrame, State.flags[24]));
  msr(ARMEmitter::SystemRegister::NZCV, TmpReg);

+  FillSpecialRegs(TmpReg, TmpReg2, true, FPRs);
+
  if (FPRs) {
-    // Set up predicate registers.
-    // We don't bother spilling these in SpillStaticRegs,
-    // since all that matters is we restore them on a fill.
-    // It's not a concern if they get trounced by something else.
-    if (EmitterCTX->HostFeatures.SupportsSVE) {
-      ptrue(ARMEmitter::SubRegSize::i8Bit, PRED_TMP_16B, ARMEmitter::PredicatePattern::SVE_VL16);
-    }
-
-    if (EmitterCTX->HostFeatures.SupportsAVX) {
-      ptrue(ARMEmitter::SubRegSize::i8Bit, PRED_TMP_32B, ARMEmitter::PredicatePattern::SVE_VL32);
-
+    if (EmitterCTX->HostFeatures.SupportsAVX && EmitterCTX->HostFeatures.SupportsSVE256) {
      for (size_t i = 0; i < StaticFPRegisters.size(); i++) {
        const auto Reg = StaticFPRegisters[i];
        if (((1U << Reg.Idx()) & FPRFillMask) != 0) {
@@ -783,8 +813,8 @@ void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRF
  }
 }

-void Arm64Emitter::PushVectorRegisters(ARMEmitter::Register TmpReg, bool SVERegs, std::span<const ARMEmitter::VRegister> VRegs) {
-  if (SVERegs) {
+void Arm64Emitter::PushVectorRegisters(ARMEmitter::Register TmpReg, bool SVE256Regs, std::span<const ARMEmitter::VRegister> VRegs) {
+  if (SVE256Regs) {
    size_t i = 0;

    for (; i < (VRegs.size() % 4); i += 2) {
@@ -834,8 +864,8 @@ void Arm64Emitter::PushGeneralRegisters(ARMEmitter::Register TmpReg, std::span<c
  }
 }

-void Arm64Emitter::PopVectorRegisters(bool SVERegs, std::span<const ARMEmitter::VRegister> VRegs) {
-  if (SVERegs) {
+void Arm64Emitter::PopVectorRegisters(bool SVE256Regs, std::span<const ARMEmitter::VRegister> VRegs) {
+  if (SVE256Regs) {
    size_t i = 0;
    for (; i < (VRegs.size() % 4); i += 2) {
      const auto Reg1 = VRegs[i];
@@ -884,9 +914,9 @@ void Arm64Emitter::PopGeneralRegisters(std::span<const ARMEmitter::Register> Reg
 }

 void Arm64Emitter::PushDynamicRegsAndLR(ARMEmitter::Register TmpReg) {
-  const auto CanUseSVE = EmitterCTX->HostFeatures.SupportsAVX;
+  const auto CanUseSVE256 = EmitterCTX->HostFeatures.SupportsSVE256;
  const auto GPRSize = (ConfiguredDynamicRegisterBase.size() + 1) * Core::CPUState::GPR_REG_SIZE;
-  const auto FPRRegSize = CanUseSVE ? Core::CPUState::XMM_AVX_REG_SIZE : Core::CPUState::XMM_SSE_REG_SIZE;
+  const auto FPRRegSize = CanUseSVE256 ? 32 : 16;
  const auto FPRSize = GeneralFPRegisters.size() * FPRRegSize;
  const uint64_t SPOffset = AlignUp(GPRSize + FPRSize, 16);

@@ -898,7 +928,7 @@ void Arm64Emitter::PushDynamicRegsAndLR(ARMEmitter::Register TmpReg) {
  LOGMAN_THROW_A_FMT(GeneralFPRegisters.size() % 2 == 0, "Needs to have multiple of 2 FPRs for RA");

  // Push the vector registers
-  PushVectorRegisters(TmpReg, CanUseSVE, GeneralFPRegisters);
+  PushVectorRegisters(TmpReg, CanUseSVE256, GeneralFPRegisters);

  // Push the general registers.
  PushGeneralRegisters(TmpReg, ConfiguredDynamicRegisterBase);
@@ -909,10 +939,10 @@ void Arm64Emitter::PushDynamicRegsAndLR(ARMEmitter::Register TmpReg) {
 }

 void Arm64Emitter::PopDynamicRegsAndLR() {
-  const auto CanUseSVE = EmitterCTX->HostFeatures.SupportsAVX;
+  const auto CanUseSVE256 = EmitterCTX->HostFeatures.SupportsSVE256;

  // Pop vectors first
-  PopVectorRegisters(CanUseSVE, GeneralFPRegisters);
+  PopVectorRegisters(CanUseSVE256, GeneralFPRegisters);

  // Pop GPRs second
  PopGeneralRegisters(ConfiguredDynamicRegisterBase);
@@ -923,8 +953,8 @@ void Arm64Emitter::PopDynamicRegsAndLR() {
 }

 void Arm64Emitter::SpillForPreserveAllABICall(ARMEmitter::Register TmpReg, bool FPRs) {
-  const auto CanUseSVE = EmitterCTX->HostFeatures.SupportsAVX;
-  const auto FPRRegSize = CanUseSVE ? Core::CPUState::XMM_AVX_REG_SIZE : Core::CPUState::XMM_SSE_REG_SIZE;
+  const auto CanUseSVE256 = EmitterCTX->HostFeatures.SupportsSVE256;
+  const auto FPRRegSize = CanUseSVE256 ? 32 : 16;

  std::span<const ARMEmitter::Register> DynamicGPRs {};
  std::span<const ARMEmitter::VRegister> DynamicFPRs {};
@@ -936,7 +966,7 @@ void Arm64Emitter::SpillForPreserveAllABICall(ARMEmitter::Register TmpReg, bool
    PreserveSRAMask = x64::PreserveAll_SRAMask;
    PreserveSRAFPRMask = x64::PreserveAll_SRAFPRMask;

-    if (CanUseSVE) {
+    if (CanUseSVE256) {
      DynamicFPRs = x64::PreserveAll_DynamicFPRSVE;
      PreserveSRAFPRMask = x64::PreserveAll_SRAFPRSVEMask;
    }
@@ -946,7 +976,7 @@ void Arm64Emitter::SpillForPreserveAllABICall(ARMEmitter::Register TmpReg, bool
    PreserveSRAMask = x32::PreserveAll_SRAMask;
    PreserveSRAFPRMask = x32::PreserveAll_SRAFPRMask;

-    if (CanUseSVE) {
+    if (CanUseSVE256) {
      DynamicFPRs = x32::PreserveAll_DynamicFPRSVE;
      PreserveSRAFPRMask = x32::PreserveAll_SRAFPRSVEMask;
    }
@@ -965,14 +995,14 @@ void Arm64Emitter::SpillForPreserveAllABICall(ARMEmitter::Register TmpReg, bool
  add(ARMEmitter::Size::i64Bit, TmpReg, ARMEmitter::Reg::rsp, 0);

  // Push the vector registers.
-  PushVectorRegisters(TmpReg, CanUseSVE, DynamicFPRs);
+  PushVectorRegisters(TmpReg, CanUseSVE256, DynamicFPRs);

  // Push the general registers.
  PushGeneralRegisters(TmpReg, DynamicGPRs);
 }

 void Arm64Emitter::FillForPreserveAllABICall(bool FPRs) {
-  const auto CanUseSVE = EmitterCTX->HostFeatures.SupportsAVX;
+  const auto CanUseSVE256 = EmitterCTX->HostFeatures.SupportsSVE256;

  std::span<const ARMEmitter::Register> DynamicGPRs {};
  std::span<const ARMEmitter::VRegister> DynamicFPRs {};
@@ -985,7 +1015,7 @@ void Arm64Emitter::FillForPreserveAllABICall(bool FPRs) {
    PreserveSRAMask = x64::PreserveAll_SRAMask;
    PreserveSRAFPRMask = x64::PreserveAll_SRAFPRMask;

-    if (CanUseSVE) {
+    if (CanUseSVE256) {
      DynamicFPRs = x64::PreserveAll_DynamicFPRSVE;
      PreserveSRAFPRMask = x64::PreserveAll_SRAFPRSVEMask;
    }
@@ -995,7 +1025,7 @@ void Arm64Emitter::FillForPreserveAllABICall(bool FPRs) {
    PreserveSRAMask = x32::PreserveAll_SRAMask;
    PreserveSRAFPRMask = x32::PreserveAll_SRAFPRMask;

-    if (CanUseSVE) {
+    if (CanUseSVE256) {
      DynamicFPRs = x32::PreserveAll_DynamicFPRSVE;
      PreserveSRAFPRMask = x32::PreserveAll_SRAFPRSVEMask;
    }
@@ -1005,7 +1035,7 @@ void Arm64Emitter::FillForPreserveAllABICall(bool FPRs) {
  FillStaticRegs(true, PreserveSRAMask, PreserveSRAFPRMask);

  // Pop the vector registers.
-  PopVectorRegisters(CanUseSVE, DynamicFPRs);
+  PopVectorRegisters(CanUseSVE256, DynamicFPRs);

  // Pop the general registers.
  PopGeneralRegisters(DynamicGPRs);
@@ -70,6 +70,14 @@ constexpr auto VTMP2 = ARMEmitter::VReg::v17;
 // Entry/Exit ABI
 constexpr auto EC_CALL_CHECKER_PC_REG = ARMEmitter::XReg::x9;
 constexpr auto EC_ENTRY_CPUAREA_REG = ARMEmitter::XReg::x17;
+
+// These structures are not included in the standard Windows headers, define the offsets of members we care about for EC here.
+constexpr size_t TEB_CPU_AREA_OFFSET = 0x1788;
+constexpr size_t TEB_PEB_OFFSET = 0x60;
+constexpr size_t PEB_EC_CODE_BITMAP_OFFSET = 0x368;
+constexpr size_t CPU_AREA_IN_SYSCALL_CALLBACK_OFFSET = 0x1;
+constexpr size_t CPU_AREA_EMULATOR_STACK_BASE_OFFSET = 0x8;
+constexpr size_t CPU_AREA_EMULATOR_DATA_OFFSET = 0x30;
 #endif

 // Predicate register temporaries (used when AVX support is enabled)
@@ -86,7 +94,6 @@ protected:
  Arm64Emitter(FEXCore::Context::ContextImpl* ctx, void* EmissionPtr = nullptr, size_t size = 0);

  FEXCore::Context::ContextImpl* EmitterCTX;
-  vixl::aarch64::CPU CPU;

  std::span<const ARMEmitter::Register> ConfiguredDynamicRegisterBase {};
  std::span<const ARMEmitter::Register> StaticRegisters {};
@@ -97,12 +104,15 @@ protected:

  void LoadConstant(ARMEmitter::Size s, ARMEmitter::Register Reg, uint64_t Constant, bool NOPPad = false);

+  void FillSpecialRegs(ARMEmitter::Register TmpReg, ARMEmitter::Register TmpReg2, bool SetFIZ, bool SetPredRegs);

  // NOTE: These functions WILL clobber the register TMP4 if AVX support is enabled
  //       and FPRs are being spilled or filled. If only GPRs are spilled/filled, then
  //       TMP4 is left alone.
  void SpillStaticRegs(ARMEmitter::Register TmpReg, bool FPRs = true, uint32_t GPRSpillMask = ~0U, uint32_t FPRSpillMask = ~0U);
-  void FillStaticRegs(bool FPRs = true, uint32_t GPRFillMask = ~0U, uint32_t FPRFillMask = ~0U);
+  void FillStaticRegs(bool FPRs = true, uint32_t GPRFillMask = ~0U, uint32_t FPRFillMask = ~0U,
+                      std::optional<ARMEmitter::Register> OptionalReg = std::nullopt,
+                      std::optional<ARMEmitter::Register> OptionalReg2 = std::nullopt);

  // Register 0-18 + 29 + 30 are caller saved
  static constexpr uint32_t CALLER_GPR_MASK = 0b0110'0000'0000'0111'1111'1111'1111'1111U;
@@ -19,6 +19,10 @@ namespace CPU {
    {0x0000'0000'8000'0000ULL, 0x0000'0000'8000'0000ULL}, // NAMED_VECTOR_PADDSUBPS_INVERT_UPPER
    {0x8000'0000'0000'0000ULL, 0x0000'0000'0000'0000ULL}, // NAMED_VECTOR_PADDSUBPD_INVERT
    {0x8000'0000'0000'0000ULL, 0x0000'0000'0000'0000ULL}, // NAMED_VECTOR_PADDSUBPD_INVERT_UPPER
+    {0x8000'0000'0000'0000ULL, 0x8000'0000'0000'0000ULL}, // NAMED_VECTOR_PSUBADDPS_INVERT
+    {0x8000'0000'0000'0000ULL, 0x8000'0000'0000'0000ULL}, // NAMED_VECTOR_PSUBADDPS_INVERT_UPPER
+    {0x0000'0000'0000'0000ULL, 0x8000'0000'0000'0000ULL}, // NAMED_VECTOR_PSUBADDPD_INVERT
+    {0x0000'0000'0000'0000ULL, 0x8000'0000'0000'0000ULL}, // NAMED_VECTOR_PSUBADDPD_INVERT_UPPER
    {0x0000'0001'0000'0000ULL, 0x0000'0003'0000'0002ULL}, // NAMED_VECTOR_MOVMSKPS_SHIFT
    {0x040B'0E01'0B0E'0104ULL, 0x0C03'0609'0306'090CULL}, // NAMED_VECTOR_AESKEYGENASSIST_SWIZZLE
    {0x0706'0504'FFFF'FFFFULL, 0xFFFF'FFFF'0B0A'0908ULL}, // NAMED_VECTOR_BLENDPS_0110B
@@ -34,12 +34,6 @@ namespace CodeSerialize {
 }

 namespace CPU {
-  struct CPUBackendFeatures {
-    bool SupportsFlags = false;
-    bool SupportsSaturatingRoundingShifts = false;
-    bool SupportsVTBL2 = false;
-  };
-
  class CPUBackend {
  public:
    struct CodeBuffer {
@@ -34,6 +34,8 @@ namespace ProductNames {
  static const char ARM_A76AE[] = "Cortex-A76AE";
  static const char ARM_V1[] = "Neoverse V1";
  static const char ARM_V2[] = "Neoverse V2";
+  static const char ARM_V3[] = "Neoverse V3";
+  static const char ARM_V3AE[] = "Neoverse V3AE";
  static const char ARM_A77[] = "Cortex-A77";
  static const char ARM_A78[] = "Cortex-A78";
  static const char ARM_A78AE[] = "Cortex-A78AE";
@@ -41,13 +43,16 @@ namespace ProductNames {
  static const char ARM_A710[] = "Cortex-A710";
  static const char ARM_A715[] = "Cortex-A715";
  static const char ARM_A720[] = "Cortex-A720";
+  static const char ARM_A725[] = "Cortex-A725";
  static const char ARM_X1[] = "Cortex-X1";
  static const char ARM_X1C[] = "Cortex-X1C";
  static const char ARM_X2[] = "Cortex-X2";
  static const char ARM_X3[] = "Cortex-X3";
  static const char ARM_X4[] = "Cortex-X4";
+  static const char ARM_X925[] = "Cortex-X925";
  static const char ARM_N1[] = "Neoverse N1";
  static const char ARM_N2[] = "Neoverse N2";
+  static const char ARM_N3[] = "Neoverse N3";
  static const char ARM_E1[] = "Neoverse E1";
  static const char ARM_A35[] = "Cortex-A35";
  static const char ARM_A53[] = "Cortex-A53";
@@ -142,12 +147,17 @@ void CPUIDEmu::SetupHostHybridFlag() {
  // CPU priority order
  // This is mostly arbitrary but will sort by some sort of CPU priority by performance
  // Relative list so things they will commonly end up in big.little configurations sort of relate
-  static constexpr std::array<CPUMIDR, 43> CPUMIDRs = {{
+  static constexpr std::array<CPUMIDR, 48> CPUMIDRs = {{
    // Typically big CPU cores
    {0x51, 0x001, 1, ProductNames::ARM_ORYON_1}, // Qualcomm Oryon-1

    {0x61, 0x023, 1, ProductNames::ARM_Firestorm}, // Apple M1 Firestorm

+    {0x41, 0xd85, 1, ProductNames::ARM_X925},    // X925
+    {0x41, 0xd87, 1, ProductNames::ARM_A725},    // A725
+    {0x41, 0xd84, 1, ProductNames::ARM_V3},      // V3
+    {0x41, 0xd83, 1, ProductNames::ARM_V3AE},    // V3AE
+    {0x41, 0xd8e, 1, ProductNames::ARM_N3},      // N3
    {0x41, 0xd82, 1, ProductNames::ARM_X4},      // X4
    {0x41, 0xd81, 1, ProductNames::ARM_A720},    // A720
    {0x41, 0xd4e, 1, ProductNames::ARM_X3},      // X3
@@ -347,8 +357,7 @@ void CPUIDEmu::SetupHostHybridFlag() {}


 void CPUIDEmu::SetupFeatures() {
-  // TODO: Enable once AVX is supported.
-  if (false && CTX->HostFeatures.SupportsAVX) {
+  if (CTX->HostFeatures.SupportsAVX) {
    XCR0 |= XCR0_AVX;
  }

@@ -417,7 +426,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_01h(uint32_t Leaf) const {
            (1 << 9) |                                      // SSSE3
            (0 << 10) |                                     // L1 context ID
            (0 << 11) |                                     // Silicon debug
-            (0 << 12) |                                     // FMA3
+            (SupportsAVX() << 12) |                         // FMA3
            (1 << 13) |                                     // CMPXCHG16B
            (0 << 14) |                                     // xTPR update control
            (0 << 15) |                                     // Perfmon and debug capability
@@ -434,7 +443,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_01h(uint32_t Leaf) const {
            (SupportsAVX() << 26) |                         // XSAVE
            (SupportsAVX() << 27) |                         // OSXSAVE
            (SupportsAVX() << 28) |                         // AVX
-            (0 << 29) |                                     // F16C
+            (SupportsAVX() << 29) |                         // F16C
            (CTX->HostFeatures.SupportsRAND << 30) |        // RDRAND
            (Hypervisor << 31);

@@ -601,6 +610,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_07h(uint32_t Leaf) const {
    // This is due to LRCPC performance on Cortex being abysmal.
    // Only enable EnhancedREPMOVS if SoftwareTSO isn't required OR if MemcpySetTSO is not enabled.
    const uint32_t SupportsEnhancedREPMOVS = CTX->SoftwareTSORequired() == false || MemcpySetTSOEnabled() == false;
+    const uint32_t SupportsVPCLMULQDQ = CTX->HostFeatures.SupportsPMULL_128Bit && SupportsAVX();

    // Number of subfunctions
    Res.eax = 0x0;
@@ -609,7 +619,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_07h(uint32_t Leaf) const {
              (0 << 2) |                               // SGX
              (SupportsAVX() << 3) |                   // BMI1
              (0 << 4) |                               // Intel Hardware Lock Elison
-              (0 << 5) |                               // AVX2 support
+              (SupportsAVX() << 5) |                   // AVX2 support
              (1 << 6) |                               // FPU data pointer updated only on exception
              (1 << 7) |                               // SMEP support
              (SupportsAVX() << 8) |                   // BMI2
@@ -628,7 +638,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_07h(uint32_t Leaf) const {
              (0 << 21) |                              // Reserved
              (0 << 22) |                              // Reserved
              (1 << 23) |                              // CLFLUSHOPT instruction
-              (CTX->HostFeatures.SupportsCLWB << 24) | // CLWB instruction
+              (1 << 24) |                              // CLWB instruction
              (0 << 25) |                              // Intel processor trace
              (0 << 26) |                              // Reserved
              (0 << 27) |                              // Reserved
@@ -637,38 +647,38 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_07h(uint32_t Leaf) const {
              (0 << 30) |                              // Reserved
              (0 << 31);                               // Reserved

-    Res.ecx = (1 << 0) |  // PREFETCHWT1
-              (0 << 1) |  // AVX512VBMI
-              (0 << 2) |  // Usermode instruction prevention
-              (0 << 3) |  // Protection keys for user mode pages
-              (0 << 4) |  // OS protection keys
-              (0 << 5) |  // waitpkg
-              (0 << 6) |  // AVX512_VBMI2
-              (0 << 7) |  // CET shadow stack
-              (0 << 8) |  // GFNI
-              (0 << 9) |  // VAES
-              (0 << 10) | // VPCLMULQDQ
-              (0 << 11) | // AVX512_VNNI
-              (0 << 12) | // AVX512_BITALG
-              (0 << 13) | // Intel Total Memory Encryption
-              (0 << 14) | // AVX512_VPOPCNTDQ
-              (0 << 15) | // Reserved
-              (0 << 16) | // 5 Level page tables
-              (0 << 17) | // MPX MAWAU
-              (0 << 18) | // MPX MAWAU
-              (0 << 19) | // MPX MAWAU
-              (0 << 20) | // MPX MAWAU
-              (0 << 21) | // MPX MAWAU
-              (1 << 22) | // RDPID Read Processor ID
-              (0 << 23) | // Reserved
-              (0 << 24) | // Reserved
-              (0 << 25) | // CLDEMOTE
-              (0 << 26) | // Reserved
-              (0 << 27) | // MOVDIRI
-              (0 << 28) | // MOVDIR64B
-              (0 << 29) | // Reserved
-              (0 << 30) | // SGX Launch configuration
-              (0 << 31);  // Reserved
+    Res.ecx = (1 << 0) |                                // PREFETCHWT1
+              (0 << 1) |                                // AVX512VBMI
+              (0 << 2) |                                // Usermode instruction prevention
+              (0 << 3) |                                // Protection keys for user mode pages
+              (0 << 4) |                                // OS protection keys
+              (0 << 5) |                                // waitpkg
+              (0 << 6) |                                // AVX512_VBMI2
+              (0 << 7) |                                // CET shadow stack
+              (0 << 8) |                                // GFNI
+              (CTX->HostFeatures.SupportsAES256 << 9) | // VAES
+              (SupportsVPCLMULQDQ << 10) |              // VPCLMULQDQ
+              (0 << 11) |                               // AVX512_VNNI
+              (0 << 12) |                               // AVX512_BITALG
+              (0 << 13) |                               // Intel Total Memory Encryption
+              (0 << 14) |                               // AVX512_VPOPCNTDQ
+              (0 << 15) |                               // Reserved
+              (0 << 16) |                               // 5 Level page tables
+              (0 << 17) |                               // MPX MAWAU
+              (0 << 18) |                               // MPX MAWAU
+              (0 << 19) |                               // MPX MAWAU
+              (0 << 20) |                               // MPX MAWAU
+              (0 << 21) |                               // MPX MAWAU
+              (1 << 22) |                               // RDPID Read Processor ID
+              (0 << 23) |                               // Reserved
+              (0 << 24) |                               // Reserved
+              (0 << 25) |                               // CLDEMOTE
+              (0 << 26) |                               // Reserved
+              (0 << 27) |                               // MOVDIRI
+              (0 << 28) |                               // MOVDIR64B
+              (0 << 29) |                               // Reserved
+              (0 << 30) |                               // SGX Launch configuration
+              (0 << 31);                                // Reserved

    Res.edx = (0 << 0) |                   // Reserved
              (0 << 1) |                   // Reserved
@@ -887,7 +897,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0001h(uint32_t Leaf) con
            (0 << 18) | // Reserved
            (0 << 19) | // Reserved
            (0 << 20) | // Reserved
-            (0 << 21) | // Reserved
+            (0 << 21) | // XOP-TBM
            (0 << 22) | // Topology extensions support
            (0 << 23) | // Core performance counter extensions
            (0 << 24) | // NB performance counter extensions
@@ -895,7 +905,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0001h(uint32_t Leaf) con
            (0 << 26) | // Data breakpoints extensions
            (0 << 27) | // Performance TSC
            (0 << 28) | // L2 perf counter extensions
-            (0 << 29) | // Reserved
+            (0 << 29) | // MONITORX
            (0 << 30) | // Reserved
            (0 << 31);  // Reserved

@@ -38,7 +38,6 @@ $end_info$
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/HLE/SyscallHandler.h>
 #include <FEXCore/HLE/SourcecodeResolver.h>
-#include <FEXCore/HLE/Linux/ThreadManagement.h>
 #include <FEXCore/Utils/Allocator.h>
 #include <FEXCore/Utils/Event.h>
 #include <FEXCore/Utils/File.h>
@@ -75,8 +74,9 @@ $end_info$
 #include <xxhash.h>

 namespace FEXCore::Context {
-ContextImpl::ContextImpl()
-  : CPUID {this}
+ContextImpl::ContextImpl(const FEXCore::HostFeatures& Features)
+  : HostFeatures {Features}
+  , CPUID {this}
  , IRCaptureCache {this} {
 #ifdef BLOCKSTATS
  BlockData = std::make_unique<FEXCore::BlockSamplingData>();
@@ -216,6 +216,55 @@ uint32_t ContextImpl::ReconstructCompactedEFLAGS(FEXCore::Core::InternalThreadSt
  return EFLAGS;
 }

+void ContextImpl::ReconstructXMMRegisters(const FEXCore::Core::InternalThreadState* Thread, __uint128_t* XMM_Low, __uint128_t* YMM_High) {
+  const size_t MaximumRegisters = Config.Is64BitMode ? FEXCore::Core::CPUState::NUM_XMMS : 8;
+
+  if (YMM_High != nullptr && HostFeatures.SupportsAVX) {
+    const bool SupportsConvergedRegisters = HostFeatures.SupportsSVE256;
+
+    if (SupportsConvergedRegisters) {
+      ///< Output wants to de-interleave
+      for (size_t i = 0; i < MaximumRegisters; ++i) {
+        memcpy(&XMM_Low[i], &Thread->CurrentFrame->State.xmm.avx.data[i][0], sizeof(__uint128_t));
+        memcpy(&YMM_High[i], &Thread->CurrentFrame->State.xmm.avx.data[i][2], sizeof(__uint128_t));
+      }
+    } else {
+      ///< Matches what FEX wants with non-converged registers
+      for (size_t i = 0; i < MaximumRegisters; ++i) {
+        memcpy(&XMM_Low[i], &Thread->CurrentFrame->State.xmm.sse.data[i][0], sizeof(__uint128_t));
+        memcpy(&YMM_High[i], &Thread->CurrentFrame->State.avx_high[i][0], sizeof(__uint128_t));
+      }
+    }
+  } else {
+    // Only support SSE, no AVX here, even if requested.
+    memcpy(XMM_Low, Thread->CurrentFrame->State.xmm.sse.data, MaximumRegisters * sizeof(__uint128_t));
+  }
+}
+
+void ContextImpl::SetXMMRegistersFromState(FEXCore::Core::InternalThreadState* Thread, const __uint128_t* XMM_Low, const __uint128_t* YMM_High) {
+  const size_t MaximumRegisters = Config.Is64BitMode ? FEXCore::Core::CPUState::NUM_XMMS : 8;
+  if (YMM_High != nullptr && HostFeatures.SupportsAVX) {
+    const bool SupportsConvergedRegisters = HostFeatures.SupportsSVE256;
+
+    if (SupportsConvergedRegisters) {
+      ///< Output wants to de-interleave
+      for (size_t i = 0; i < MaximumRegisters; ++i) {
+        memcpy(&Thread->CurrentFrame->State.xmm.avx.data[i][0], &XMM_Low[i], sizeof(__uint128_t));
+        memcpy(&Thread->CurrentFrame->State.xmm.avx.data[i][2], &YMM_High[i], sizeof(__uint128_t));
+      }
+    } else {
+      ///< Matches what FEX wants with non-converged registers
+      for (size_t i = 0; i < MaximumRegisters; ++i) {
+        memcpy(&Thread->CurrentFrame->State.xmm.sse.data[i][0], &XMM_Low[i], sizeof(__uint128_t));
+        memcpy(&Thread->CurrentFrame->State.avx_high[i][0], &YMM_High[i], sizeof(__uint128_t));
+      }
+    }
+  } else {
+    // Only support SSE, no AVX here, even if requested.
+    memcpy(Thread->CurrentFrame->State.xmm.sse.data, XMM_Low, MaximumRegisters * sizeof(__uint128_t));
+  }
+}
+
 void ContextImpl::SetFlagsFromCompactedEFLAGS(FEXCore::Core::InternalThreadState* Thread, uint32_t EFLAGS) {
  const auto Frame = Thread->CurrentFrame;
  for (size_t i = 0; i < FEXCore::Core::CPUState::NUM_EFLAG_BITS; ++i) {
@@ -260,14 +309,6 @@ void ContextImpl::SetFlagsFromCompactedEFLAGS(FEXCore::Core::InternalThreadState

 bool ContextImpl::InitCore() {
  // Initialize the CPU core signal handlers & DispatcherConfig
-  switch (Config.Core) {
-  case FEXCore::Config::CONFIG_IRJIT: BackendFeatures = FEXCore::CPU::GetArm64JITBackendFeatures(); break;
-  case FEXCore::Config::CONFIG_CUSTOM:
-    // Do nothing
-    break;
-  default: LogMan::Msg::EFmt("Unknown core configuration"); return false;
-  }
-
  Dispatcher = FEXCore::CPU::Dispatcher::Create(this);

  // Set up the SignalDelegator config since core is initialized.
@@ -324,14 +365,15 @@ void ContextImpl::HandleCallback(FEXCore::Core::InternalThreadState* Thread, uin

 FEXCore::Context::ExitReason ContextImpl::RunUntilExit(FEXCore::Core::InternalThreadState* Thread) {
  ExecutionThread(Thread);
-  while (true) {
-    auto reason = Thread->ExitReason;

-    // Don't return if a custom exit handling the exit
-    if (!CustomExitHandler || reason == ExitReason::EXIT_SHUTDOWN) {
-      return reason;
-    }
+  CoreShuttingDown.store(true);
+
+  if (CustomExitHandler) {
+    CustomExitHandler(Thread, FEXCore::Context::ExitReason::EXIT_SHUTDOWN);
+    return Thread->ExitReason;
  }
+
+  return FEXCore::Context::ExitReason::EXIT_SHUTDOWN;
 }

 void ContextImpl::ExecuteThread(FEXCore::Core::InternalThreadState* Thread) {
@@ -341,9 +383,6 @@ void ContextImpl::ExecuteThread(FEXCore::Core::InternalThreadState* Thread) {

 void ContextImpl::InitializeThreadTLSData(FEXCore::Core::InternalThreadState* Thread) {
  // Let's do some initial bookkeeping here
-  Thread->ThreadManager.TID = FHU::Syscalls::gettid();
-  Thread->ThreadManager.PID = ::getpid();
-
  if (ThunkHandler) {
    ThunkHandler->RegisterTLSState(Thread);
  }
@@ -397,7 +436,6 @@ ContextImpl::CreateThread(uint64_t InitialRIP, uint64_t StackPointer, FEXCore::C
  }

  // Set up the thread manager state
-  Thread->ThreadManager.parent_tid = ParentTID;
  Thread->CurrentFrame->Thread = Thread;

  InitializeCompiler(Thread);
@@ -565,6 +603,20 @@ ContextImpl::GenerateIR(FEXCore::Core::InternalThreadState* Thread, uint64_t Gue
        DecodedInfo = &Block.DecodedInstructions[i];
        bool IsLocked = DecodedInfo->Flags & FEXCore::X86Tables::DecodeFlags::FLAG_LOCK;

+        // Do a partial register cache flush before every instruction. This
+        // prevents cross-instruction static register caching, while allowing
+        // context load/stores to be optimized within a block. Theoretically,
+        // this flush is not required for correctness, all mandatory flushes are
+        // included in instruction-specific handlers. Instead, this is a blunt
+        // heuristic to make the register cache less aggressive, as the current
+        // RA generates bad code in common cases with tied registers otherwise.
+        //
+        // However, it makes our exception handling behaviour more predictable.
+        // It is potentially correctness bearing in that sense, but that is a
+        // side effect here and (if that behaviour is required) we should handle
+        // that more explicitly later.
+        Thread->OpDispatcher->FlushRegisterCache(true);
+
        if (ExtendedDebugInfo || Thread->OpDispatcher->CanHaveSideEffects(TableInfo, DecodedInfo)) {
          Thread->OpDispatcher->_GuestOpcode(Block.Entry + BlockInstructionsLength - GuestRIP);
        }
@@ -583,7 +635,7 @@ ContextImpl::GenerateIR(FEXCore::Core::InternalThreadState* Thread, uint64_t Gue

          Thread->OpDispatcher->SetCurrentCodeBlock(CodeWasChangedBlock);
          Thread->OpDispatcher->_ThreadRemoveCodeEntry();
-          Thread->OpDispatcher->_ExitFunction(
+          Thread->OpDispatcher->ExitFunction(
            Thread->OpDispatcher->_EntrypointOffset(IR::SizeToOpSize(GPRSize), Block.Entry + BlockInstructionsLength - GuestRIP));

          auto NextOpBlock = Thread->OpDispatcher->CreateNewCodeBlockAfter(CurrentBlock);
@@ -614,7 +666,7 @@ ContextImpl::GenerateIR(FEXCore::Core::InternalThreadState* Thread, uint64_t Gue
          }
          // Invalid instruction
          Thread->OpDispatcher->InvalidOp(DecodedInfo);
-          Thread->OpDispatcher->_ExitFunction(Thread->OpDispatcher->_EntrypointOffset(IR::SizeToOpSize(GPRSize), Block.Entry - GuestRIP));
+          Thread->OpDispatcher->ExitFunction(Thread->OpDispatcher->_EntrypointOffset(IR::SizeToOpSize(GPRSize), Block.Entry - GuestRIP));
        }

        const bool NeedsBlockEnd =
@@ -631,7 +683,7 @@ ContextImpl::GenerateIR(FEXCore::Core::InternalThreadState* Thread, uint64_t Gue
          const uint8_t GPRSize = GetGPRSize();

          // We had some instructions. Early exit
-          Thread->OpDispatcher->_ExitFunction(
+          Thread->OpDispatcher->ExitFunction(
            Thread->OpDispatcher->_EntrypointOffset(IR::SizeToOpSize(GPRSize), Block.Entry + BlockInstructionsLength - GuestRIP));
          break;
        }
@@ -755,14 +807,6 @@ uintptr_t ContextImpl::CompileBlock(FEXCore::Core::CpuStateFrame* Frame, uint64_
  FEXCORE_PROFILE_SCOPED("CompileBlock");
  auto Thread = Frame->Thread;

-#ifdef _M_ARM_64EC
-  // If the target PC is EC code, mark it in the L2 and return straight to the dispatcher
-  // so it can handle the call/return.
-  if (Thread->LookupCache->CheckPageEC(GuestRIP)) {
-    return GuestRIP;
-  }
-#endif
-
  // Invalidate might take a unique lock on this, to guarantee that during invalidation no code gets compiled
  auto lk = GuardSignalDeferringSection<std::shared_lock>(CodeInvalidationMutex, Thread);

@@ -869,15 +913,6 @@ void ContextImpl::ExecutionThread(FEXCore::Core::InternalThreadState* Thread) {
  // If it is the parent thread that died then just leave
  FEX_TODO("This doesn't make sense when the parent thread doesn't outlive its children");

-  if (Thread->ThreadManager.parent_tid == 0) {
-    CoreShuttingDown.store(true);
-    Thread->ExitReason = FEXCore::Context::ExitReason::EXIT_SHUTDOWN;
-
-    if (CustomExitHandler) {
-      CustomExitHandler(Thread->ThreadManager.TID, Thread->ExitReason);
-    }
-  }
-
 #ifndef _WIN32
  Alloc::OSAllocator::UninstallTLSData(Thread);
 #endif
@@ -972,7 +1007,7 @@ void ContextImpl::UnloadAOTIRCacheEntry(IR::AOTIRCacheEntry* Entry) {
  IRCaptureCache.UnloadAOTIRCacheEntry(Entry);
 }

-void ContextImpl::AppendThunkDefinitions(const fextl::vector<FEXCore::IR::ThunkDefinition>& Definitions) {
+void ContextImpl::AppendThunkDefinitions(std::span<const FEXCore::IR::ThunkDefinition> Definitions) {
  if (ThunkHandler) {
    ThunkHandler->AppendThunkDefinitions(Definitions);
  }
@@ -62,14 +62,6 @@ void Dispatcher::EmitDispatcher() {

  ARMEmitter::ForwardLabel l_CTX;
  ARMEmitter::SingleUseForwardLabel l_Sleep;
-#ifdef _M_ARM_64EC
-  // These structures are not included in the standard Windows headers, define them here
-  static constexpr size_t TEBCPUAreaOffset = 0x1788;
-  static constexpr size_t CPUAreaInSyscallCallbackOffset = 0x1;
-  static constexpr size_t CPUAreaEmulatorStackLimitOffset = 0x8;
-  static constexpr size_t CPUAreaEmulatorDataOffset = 0x30;
-  ARMEmitter::SingleUseForwardLabel ExitEC;
-#endif
  ARMEmitter::SingleUseForwardLabel l_CompileBlock;

  // Push all the register we need to save
@@ -94,7 +86,7 @@ void Dispatcher::EmitDispatcher() {
  b(&LoopTop);

  AbsoluteLoopTopAddressEnterECFillSRA = GetCursorAddress<uint64_t>();
-  ldr(STATE, EC_ENTRY_CPUAREA_REG, CPUAreaEmulatorDataOffset);
+  ldr(STATE, EC_ENTRY_CPUAREA_REG, CPU_AREA_EMULATOR_DATA_OFFSET);
  FillStaticRegs();

  // Enter JIT
@@ -102,17 +94,15 @@ void Dispatcher::EmitDispatcher() {

  AbsoluteLoopTopAddressEnterEC = GetCursorAddress<uint64_t>();
  // Load ThreadState and write the target PC there
-  ldr(STATE, EC_ENTRY_CPUAREA_REG, CPUAreaEmulatorDataOffset);
+  ldr(STATE, EC_ENTRY_CPUAREA_REG, CPU_AREA_EMULATOR_DATA_OFFSET);
  str(EC_CALL_CHECKER_PC_REG, STATE_PTR(CpuStateFrame, State.rip));

  // Swap stacks to the emulator stack
-  ldr(TMP1, EC_ENTRY_CPUAREA_REG, CPUAreaEmulatorStackLimitOffset);
+  ldr(TMP1, EC_ENTRY_CPUAREA_REG, CPU_AREA_EMULATOR_STACK_BASE_OFFSET);
  add(ARMEmitter::Size::i64Bit, StaticRegisters[X86State::REG_RSP], ARMEmitter::Reg::rsp, 0);
  add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, TMP1, 0);

-  if (EmitterCTX->HostFeatures.SupportsSVE) {
-    ptrue(ARMEmitter::SubRegSize::i8Bit, PRED_TMP_16B, ARMEmitter::PredicatePattern::SVE_VL16);
-  }
+  FillSpecialRegs(TMP1, TMP2, false, true);

  // Enter JIT
 #endif
@@ -168,10 +158,6 @@ void Dispatcher::EmitDispatcher() {

    // If page pointer is zero then we have no block
    cbz(ARMEmitter::Size::i64Bit, TMP1, &NoBlock);
-#ifdef _M_ARM_64EC
-    // The LSB of an L2 page entry indicates if this page contains EC code
-    tbnz(TMP1, 0, &ExitEC);
-#endif

    // Steal the page offset
    and_(ARMEmitter::Size::i64Bit, TMP2, TMP4, 0x0FFF);
@@ -198,23 +184,13 @@ void Dispatcher::EmitDispatcher() {

      and_(ARMEmitter::Size::i64Bit, TMP2, RipReg.R(), LookupCache::L1_ENTRIES_MASK);
      add(TMP1, TMP1, TMP2, ARMEmitter::ShiftType::LSL, 4);
-      stp<ARMEmitter::IndexType::OFFSET>(TMP4, TMP3, TMP1);
+      stp<ARMEmitter::IndexType::OFFSET>(TMP4, RipReg, TMP1);

      // Jump to the block
      br(TMP4);
    }
  }

-#ifdef _M_ARM_64EC
-  {
-    Bind(&ExitEC);
-    add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, StaticRegisters[X86State::REG_RSP], 0);
-    mov(EC_CALL_CHECKER_PC_REG, RipReg);
-    ldr(TMP2, STATE_PTR(CpuStateFrame, Pointers.Common.ExitFunctionEC));
-    br(TMP2);
-  }
-#endif
-
  {
    ThreadStopHandlerAddressSpillSRA = GetCursorAddress<uint64_t>();
    SpillStaticRegs(TMP1);
@@ -232,14 +208,16 @@ void Dispatcher::EmitDispatcher() {
    ExitFunctionLinkerAddress = GetCursorAddress<uint64_t>();
    SpillStaticRegs(TMP1);

+#ifndef _WIN32
    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
    add(ARMEmitter::Size::i64Bit, ARMEmitter::XReg::x0, ARMEmitter::XReg::x0, 1);
    str(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+#endif

 #ifdef _M_ARM_64EC
-    ldr(ARMEmitter::XReg::x0, ARMEmitter::XReg::x18, TEBCPUAreaOffset);
+    ldr(ARMEmitter::XReg::x0, ARMEmitter::XReg::x18, TEB_CPU_AREA_OFFSET);
    LoadConstant(ARMEmitter::Size::i32Bit, ARMEmitter::Reg::r1, 1);
-    strb(ARMEmitter::WReg::w1, ARMEmitter::XReg::x0, CPUAreaInSyscallCallbackOffset);
+    strb(ARMEmitter::WReg::w1, ARMEmitter::XReg::x0, CPU_AREA_IN_SYSCALL_CALLBACK_OFFSET);
 #endif

    mov(ARMEmitter::XReg::x0, STATE);
@@ -259,10 +237,11 @@ void Dispatcher::EmitDispatcher() {
    FillStaticRegs();

 #ifdef _M_ARM_64EC
-    ldr(TMP2, ARMEmitter::XReg::x18, TEBCPUAreaOffset);
-    strb(ARMEmitter::WReg::zr, TMP2, CPUAreaInSyscallCallbackOffset);
+    ldr(TMP2, ARMEmitter::XReg::x18, TEB_CPU_AREA_OFFSET);
+    strb(ARMEmitter::WReg::zr, TMP2, CPU_AREA_IN_SYSCALL_CALLBACK_OFFSET);
 #endif

+#ifndef _WIN32
    ldr(TMP2, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
    sub(ARMEmitter::Size::i64Bit, TMP2, TMP2, 1);
    str(TMP2, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
@@ -270,6 +249,7 @@ void Dispatcher::EmitDispatcher() {
    // Trigger segfault if any deferred signals are pending
    strb(ARMEmitter::XReg::zr, STATE,
         offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState));
+#endif

    br(TMP1);
  }
@@ -278,20 +258,43 @@ void Dispatcher::EmitDispatcher() {
  {
    Bind(&NoBlock);

+#ifdef _M_ARM_64EC
+    // Check the EC code bitmap incase we need to exit the JIT to call into native code.
+    ARMEmitter::SingleUseForwardLabel l_NotECCode;
+    ldr(TMP1, ARMEmitter::XReg::x18, TEB_PEB_OFFSET);
+    ldr(TMP1, TMP1, PEB_EC_CODE_BITMAP_OFFSET);
+
+    lsr(ARMEmitter::Size::i64Bit, TMP2, RipReg, 15);
+    and_(ARMEmitter::Size::i64Bit, TMP2, TMP2, 0x1fffffffffff8);
+    ldr(TMP1, TMP1, TMP2, ARMEmitter::ExtendedType::LSL_64, 0);
+    lsr(ARMEmitter::Size::i64Bit, TMP2, RipReg, 12);
+    lsrv(ARMEmitter::Size::i64Bit, TMP1, TMP1, TMP2);
+    tbz(TMP1, 0, &l_NotECCode);
+
+    add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, StaticRegisters[X86State::REG_RSP], 0);
+    mov(EC_CALL_CHECKER_PC_REG, RipReg);
+    ldr(TMP2, STATE_PTR(CpuStateFrame, Pointers.Common.ExitFunctionEC));
+    br(TMP2);
+
+    Bind(&l_NotECCode);
+#endif
+
    SpillStaticRegs(TMP1);

    if (!TMP_ABIARGS) {
-      mov(ARMEmitter::XReg::x2, TMP3);
+      mov(ARMEmitter::XReg::x2, RipReg);
    }

+#ifndef _WIN32
    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
    add(ARMEmitter::Size::i64Bit, ARMEmitter::XReg::x0, ARMEmitter::XReg::x0, 1);
    str(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+#endif

 #ifdef _M_ARM_64EC
-    ldr(ARMEmitter::XReg::x0, ARMEmitter::XReg::x18, TEBCPUAreaOffset);
+    ldr(ARMEmitter::XReg::x0, ARMEmitter::XReg::x18, TEB_CPU_AREA_OFFSET);
    LoadConstant(ARMEmitter::Size::i32Bit, ARMEmitter::Reg::r1, 1);
-    strb(ARMEmitter::WReg::w1, ARMEmitter::XReg::x0, CPUAreaInSyscallCallbackOffset);
+    strb(ARMEmitter::WReg::w1, ARMEmitter::XReg::x0, CPU_AREA_IN_SYSCALL_CALLBACK_OFFSET);
 #endif

    ldr(ARMEmitter::XReg::x0, &l_CTX);
@@ -309,10 +312,11 @@ void Dispatcher::EmitDispatcher() {
    FillStaticRegs();

 #ifdef _M_ARM_64EC
-    ldr(TMP1, ARMEmitter::XReg::x18, TEBCPUAreaOffset);
-    strb(ARMEmitter::WReg::zr, TMP1, CPUAreaInSyscallCallbackOffset);
+    ldr(TMP1, ARMEmitter::XReg::x18, TEB_CPU_AREA_OFFSET);
+    strb(ARMEmitter::WReg::zr, TMP1, CPU_AREA_IN_SYSCALL_CALLBACK_OFFSET);
 #endif

+#ifndef _WIN32
    ldr(TMP1, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
    sub(ARMEmitter::Size::i64Bit, TMP1, TMP1, 1);
    str(TMP1, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
@@ -320,6 +324,7 @@ void Dispatcher::EmitDispatcher() {
    // Trigger segfault if any deferred signals are pending
    strb(ARMEmitter::XReg::zr, STATE,
         offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState));
+#endif

    b(&LoopTop);
  }
@@ -221,14 +221,16 @@ void Decoder::DecodeModRM_64(X86Tables::DecodedOperand* Operand, X86Tables::ModR
    {
      // If we have a VSIB byte (as opposed to SIB), then the index register is a vector.
      const bool IsIndexVector = (DecodeInst->TableInfo->Flags & InstFlags::FLAGS_VEX_VSIB) != 0;
+      uint8_t InvalidSIBIndex = 0b100; ///< SIB Index where there is no register encoding.
      if (IsIndexVector) {
        DecodeInst->Flags |= X86Tables::DecodeFlags::FLAG_VSIB_BYTE;
+        InvalidSIBIndex = ~0; ///< No Invalid SIB Index with Index Vectors.
      }

      const uint8_t IndexREX = (DecodeInst->Flags & DecodeFlags::FLAG_REX_XGPR_X) != 0 ? 1 : 0;
      const uint8_t BaseREX = (DecodeInst->Flags & DecodeFlags::FLAG_REX_XGPR_B) != 0 ? 1 : 0;

-      Operand->Data.SIB.Index = MapModRMToReg(IndexREX, SIB.index, false, false, IsIndexVector, false, 0b100);
+      Operand->Data.SIB.Index = MapModRMToReg(IndexREX, SIB.index, false, false, IsIndexVector, false, InvalidSIBIndex);
      Operand->Data.SIB.Base = MapModRMToReg(BaseREX, SIB.base, false, false, false, false, ModRM.mod == 0 ? 0b101 : 16);
    }

@@ -630,7 +632,6 @@ bool Decoder::NormalOpHeader(const FEXCore::X86Tables::X86InstInfo* Info, uint16
    uint16_t X87Op = ((Op - 0xD8) << 8) | ModRMByte;
    return NormalOp(&X87Ops[X87Op], X87Op);
  } else if (Info->Type == FEXCore::X86Tables::TYPE_VEX_TABLE_PREFIX) {
-    FEXCORE_TELEMETRY_SET(VEXOpTelem, 1);
    uint16_t map_select = 1;
    uint16_t pp = 0;
    const uint8_t Byte1 = ReadByte();
@@ -659,6 +660,9 @@ bool Decoder::NormalOpHeader(const FEXCore::X86Tables::X86InstInfo* Info, uint16
      if (CTX->Config.Is64BitMode && (Byte1 & 0b00100000) == 0) {
        DecodeInst->Flags |= DecodeFlags::FLAG_REX_XGPR_B;
      }
+      if (options.w) {
+        DecodeInst->Flags |= DecodeFlags::FLAG_OPTION_AVX_W;
+      }
      if (!(map_select >= 1 && map_select <= 3)) {
        LogMan::Msg::EFmt("We don't understand a map_select of: {}", map_select);
        return false;
@@ -673,7 +677,6 @@ bool Decoder::NormalOpHeader(const FEXCore::X86Tables::X86InstInfo* Info, uint16
    FEXCore::X86Tables::X86InstInfo* LocalInfo = &VEXTableOps[Op];

    if (LocalInfo->Type >= FEXCore::X86Tables::TYPE_VEX_GROUP_12 && LocalInfo->Type <= FEXCore::X86Tables::TYPE_VEX_GROUP_17) {
-      FEXCORE_TELEMETRY_SET(VEXOpTelem, 1);
      // We have ModRM
      uint8_t ModRMByte = ReadByte();
      DecodeInst->ModRM = ModRMByte;
@@ -941,14 +944,12 @@ void Decoder::BranchTargetInMultiblockRange() {
    // auto RIPOffset = LoadSource(Op, Op->Src[0], Op->Flags);
    // auto RIPTargetConst = _Constant(Op->PC + Op->InstSize);
    // Target offset is PC + InstSize + Literal
-    LOGMAN_THROW_A_FMT(DecodeInst->Src[0].IsLiteral(), "Had wrong operand type");
-    TargetRIP = DecodeInst->PC + DecodeInst->InstSize + DecodeInst->Src[0].Data.Literal.Value;
+    TargetRIP = DecodeInst->PC + DecodeInst->InstSize + DecodeInst->Src[0].Literal();
    break;
  }
  case 0xE9:
  case 0xEB: // Both are unconditional JMP instructions
-    LOGMAN_THROW_A_FMT(DecodeInst->Src[0].IsLiteral(), "Had wrong operand type");
-    TargetRIP = DecodeInst->PC + DecodeInst->InstSize + DecodeInst->Src[0].Data.Literal.Value;
+    TargetRIP = DecodeInst->PC + DecodeInst->InstSize + DecodeInst->Src[0].Literal();
    Conditional = false;
    break;
  case 0xE8: // Call - Immediate target, We don't want to inline calls
@@ -1000,8 +1001,7 @@ bool Decoder::BranchTargetCanContinue(bool FinalInstruction) const {

  if (DecodeInst->OP == 0xE8) { // Call - immediate target
    const uint64_t NextRIP = DecodeInst->PC + DecodeInst->InstSize;
-    LOGMAN_THROW_A_FMT(DecodeInst->Src[0].IsLiteral(), "Had wrong operand type");
-    TargetRIP = DecodeInst->PC + DecodeInst->InstSize + DecodeInst->Src[0].Data.Literal.Value;
+    TargetRIP = DecodeInst->PC + DecodeInst->InstSize + DecodeInst->Src[0].Literal();

    if (GPRSize == 4) {
      // If we are running a 32bit guest then wrap around addresses that go above 32bit
@@ -120,7 +120,6 @@ private:

  const uint8_t* AdjustAddrForSpecialRegion(const uint8_t* _InstStream, uint64_t EntryPoint, uint64_t RIP);

-  FEXCORE_TELEMETRY_INIT(VEXOpTelem, TYPE_USES_VEX_OPS);
  FEXCORE_TELEMETRY_INIT(EVEXOpTelem, TYPE_USES_EVEX_OPS);
 };
 } // namespace FEXCore::Frontend
@@ -6,54 +6,59 @@
 #include "Interface/IR/IR.h"

 namespace FEXCore::CPU {
-FEXCORE_PRESERVE_ALL_ATTR static void LoadDeferredFCW(uint16_t NewFCW) {
-  auto PC = (NewFCW >> 8) & 3;
+FEXCORE_PRESERVE_ALL_ATTR static softfloat_state SoftFloatStateFromFCW(uint16_t FCW) {
+  softfloat_state State;
+  State.detectTininess = softfloat_tininess_afterRounding;
+  State.exceptionFlags = 0;
+
+  auto PC = (FCW >> 8) & 3;
  switch (PC) {
-  case 0: extF80_roundingPrecision = 32; break;
-  case 2: extF80_roundingPrecision = 64; break;
-  case 3: extF80_roundingPrecision = 80; break;
+  case 0: State.roundingPrecision = 32; break;
+  case 2: State.roundingPrecision = 64; break;
+  case 3: State.roundingPrecision = 80; break;
  case 1: LOGMAN_MSG_A_FMT("Invalid x87 precision mode, {}", PC);
  }

-  auto RC = (NewFCW >> 10) & 3;
+  auto RC = (FCW >> 10) & 3;
  switch (RC) {
-  case 0: softfloat_roundingMode = softfloat_round_near_even; break;
-  case 1: softfloat_roundingMode = softfloat_round_min; break;
-  case 2: softfloat_roundingMode = softfloat_round_max; break;
-  case 3: softfloat_roundingMode = softfloat_round_minMag; break;
+  case 0: State.roundingMode = softfloat_round_near_even; break;
+  case 1: State.roundingMode = softfloat_round_min; break;
+  case 2: State.roundingMode = softfloat_round_max; break;
+  case 3: State.roundingMode = softfloat_round_minMag; break;
  }
+
+  return State;
 }

 template<>
 struct OpHandlers<IR::OP_F80CVTTO> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle4(uint16_t NewFCW, float src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle4(uint16_t FCW, float src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat(&State, src);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle8(uint16_t NewFCW, double src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle8(uint16_t FCW, double src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat(&State, src);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80CMP> {
-  template<uint32_t Flags>
-  FEXCORE_PRESERVE_ALL_ATTR static uint64_t handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static uint64_t handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);

    bool eq, lt, nan;
    uint64_t ResultFlags = 0;

-    X80SoftFloat::FCMP(Src1, Src2, &eq, &lt, &nan);
-    if (Flags & (1 << IR::FCMP_FLAG_LT) && lt) {
+    X80SoftFloat::FCMP(&State, Src1, Src2, &eq, &lt, &nan);
+    if (lt) {
      ResultFlags |= (1 << IR::FCMP_FLAG_LT);
    }
-    if (Flags & (1 << IR::FCMP_FLAG_UNORDERED) && nan) {
+    if (nan) {
      ResultFlags |= (1 << IR::FCMP_FLAG_UNORDERED);
    }
-    if (Flags & (1 << IR::FCMP_FLAG_EQ) && eq) {
+    if (eq) {
      ResultFlags |= (1 << IR::FCMP_FLAG_EQ);
    }
    return ResultFlags;
@@ -62,275 +67,261 @@ struct OpHandlers<IR::OP_F80CMP> {

 template<>
 struct OpHandlers<IR::OP_F80CVT> {
-  FEXCORE_PRESERVE_ALL_ATTR static float handle4(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static float handle4(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return src.ToF32(&State);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static double handle8(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static double handle8(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return src.ToF64(&State);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80CVTINT> {
-  FEXCORE_PRESERVE_ALL_ATTR static int16_t handle2(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static int16_t handle2(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return src.ToI16(&State);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static int32_t handle4(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static int32_t handle4(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return src.ToI32(&State);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static int64_t handle8(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return src;
+  FEXCORE_PRESERVE_ALL_ATTR static int64_t handle8(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return src.ToI64(&State);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static int16_t handle2t(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    auto rv = extF80_to_i32(src, softfloat_round_minMag, false);
+  FEXCORE_PRESERVE_ALL_ATTR static int16_t handle2t(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    auto rv = extF80_to_i32(&State, src, softfloat_round_minMag, false);

-    if (rv > INT16_MAX) {
-      return INT16_MAX;
-    } else if (rv < INT16_MIN) {
+    if (rv > INT16_MAX || rv < INT16_MIN) {
+      ///< Indefinite value for 16-bit conversions.
      return INT16_MIN;
    } else {
      return rv;
    }
  }

-  FEXCORE_PRESERVE_ALL_ATTR static int32_t handle4t(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return extF80_to_i32(src, softfloat_round_minMag, false);
+  FEXCORE_PRESERVE_ALL_ATTR static int32_t handle4t(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return extF80_to_i32(&State, src, softfloat_round_minMag, false);
  }

-  FEXCORE_PRESERVE_ALL_ATTR static int64_t handle8t(uint16_t NewFCW, X80SoftFloat src) {
-    LoadDeferredFCW(NewFCW);
-    return extF80_to_i64(src, softfloat_round_minMag, false);
+  FEXCORE_PRESERVE_ALL_ATTR static int64_t handle8t(uint16_t FCW, X80SoftFloat src) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return extF80_to_i64(&State, src, softfloat_round_minMag, false);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80CVTTOINT> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle2(uint16_t NewFCW, int16_t src) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle2(uint16_t FCW, int16_t src) {
    return src;
  }

-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle4(uint16_t NewFCW, int32_t src) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle4(uint16_t FCW, int32_t src) {
    return src;
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80ROUND> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FRNDINT(Src1);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FRNDINT(&State, Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80F2XM1> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::F2XM1(Src1);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::F2XM1(&State, Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80TAN> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FTAN(Src1);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FTAN(&State, Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80SQRT> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FSQRT(Src1);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FSQRT(&State, Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80SIN> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FSIN(Src1);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FSIN(&State, Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80COS> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FCOS(Src1);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FCOS(&State, Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80XTRACT_EXP> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
    return X80SoftFloat::FXTRACT_EXP(Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80XTRACT_SIG> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
    return X80SoftFloat::FXTRACT_SIG(Src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80ADD> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FADD(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FADD(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80SUB> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FSUB(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FSUB(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80MUL> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FMUL(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FMUL(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80DIV> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FDIV(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FDIV(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80FYL2X> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FYL2X(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FYL2X(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80ATAN> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FATAN(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FATAN(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80FPREM1> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FREM1(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FREM1(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80FPREM> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FREM(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FREM(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F80SCALE> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1, X80SoftFloat Src2) {
-    LoadDeferredFCW(NewFCW);
-    return X80SoftFloat::FSCALE(Src1, Src2);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1, X80SoftFloat Src2) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
+    return X80SoftFloat::FSCALE(&State, Src1, Src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64SIN> {
-  static double handle(uint16_t NewFCW, double src) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src) {
    return sin(src);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64COS> {
-  static double handle(uint16_t NewFCW, double src) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src) {
    return cos(src);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64TAN> {
-  static double handle(uint16_t NewFCW, double src) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src) {
    return tan(src);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64F2XM1> {
-  static double handle(uint16_t NewFCW, double src) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src) {
    return exp2(src) - 1.0;
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64ATAN> {
-  static double handle(uint16_t NewFCW, double src1, double src2) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src1, double src2) {
    return atan2(src1, src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64FPREM> {
-  static double handle(uint16_t NewFCW, double src1, double src2) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src1, double src2) {
    return fmod(src1, src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64FPREM1> {
-  static double handle(uint16_t NewFCW, double src1, double src2) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src1, double src2) {
    return remainder(src1, src2);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64FYL2X> {
-  static double handle(uint16_t NewFCW, double src1, double src2) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src1, double src2) {
    return src2 * log2(src1);
  }
 };

 template<>
 struct OpHandlers<IR::OP_F64SCALE> {
-  static double handle(uint16_t NewFCW, double src1, double src2) {
-    LoadDeferredFCW(NewFCW);
+  static double handle(uint16_t FCW, double src1, double src2) {
    double trunc = (double)(int64_t)(src2); // truncate
    return src1 * exp2(trunc);
  }
@@ -338,16 +329,16 @@ struct OpHandlers<IR::OP_F64SCALE> {

 template<>
 struct OpHandlers<IR::OP_F80BCDSTORE> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src1) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src1) {
+    softfloat_state State = SoftFloatStateFromFCW(FCW);
    bool Negative = Src1.Sign;

-    Src1 = X80SoftFloat::FRNDINT(Src1);
+    Src1 = X80SoftFloat::FRNDINT(&State, Src1);

    // Clear the Sign bit
    Src1.Sign = 0;

-    uint64_t Tmp = Src1;
+    uint64_t Tmp = Src1.ToI64(&State);
    X80SoftFloat Rv;
    uint8_t* BCD = reinterpret_cast<uint8_t*>(&Rv);
    memset(BCD, 0, 10);
@@ -379,8 +370,7 @@ struct OpHandlers<IR::OP_F80BCDSTORE> {

 template<>
 struct OpHandlers<IR::OP_F80BCDLOAD> {
-  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t NewFCW, X80SoftFloat Src) {
-    LoadDeferredFCW(NewFCW);
+  FEXCORE_PRESERVE_ALL_ATTR static X80SoftFloat handle(uint16_t FCW, X80SoftFloat Src) {
    uint8_t* Src1 = reinterpret_cast<uint8_t*>(&Src);
    uint64_t BCD {};
    // We walk through each uint8_t and pull out the BCD encoding
@@ -35,14 +35,7 @@ void InterpreterOps::FillFallbackIndexPointers(uint64_t* Info) {
  Info[Core::OPINDEX_F80CVTINT_TRUNC2] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CVTINT>::handle2t);
  Info[Core::OPINDEX_F80CVTINT_TRUNC4] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CVTINT>::handle4t);
  Info[Core::OPINDEX_F80CVTINT_TRUNC8] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CVTINT>::handle8t);
-  Info[Core::OPINDEX_F80CMP_0] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<0>);
-  Info[Core::OPINDEX_F80CMP_1] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<1>);
-  Info[Core::OPINDEX_F80CMP_2] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<2>);
-  Info[Core::OPINDEX_F80CMP_3] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<3>);
-  Info[Core::OPINDEX_F80CMP_4] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<4>);
-  Info[Core::OPINDEX_F80CMP_5] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<5>);
-  Info[Core::OPINDEX_F80CMP_6] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<6>);
-  Info[Core::OPINDEX_F80CMP_7] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<7>);
+  Info[Core::OPINDEX_F80CMP] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle);
  Info[Core::OPINDEX_F80CVTTOINT_2] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CVTTOINT>::handle2);
  Info[Core::OPINDEX_F80CVTTOINT_4] = reinterpret_cast<uint64_t>(&FEXCore::CPU::OpHandlers<IR::OP_F80CVTTOINT>::handle4);

@@ -154,17 +147,8 @@ bool InterpreterOps::GetFallbackHandler(bool SupportsPreserveAllABI, const IR::I
    break;
  }
  case IR::OP_F80CMP: {
-    auto Op = IROp->C<IR::IROp_F80Cmp>();
-
-    static constexpr std::array handlers {
-      &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<0>, &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<1>,
-      &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<2>, &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<3>,
-      &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<4>, &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<5>,
-      &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<6>, &FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle<7>,
-    };
-
-    *Info = {FABI_I64_I16_F80_F80, (void*)handlers[Op->Flags], (Core::FallbackHandlerIndex)(Core::OPINDEX_F80CMP_0 + Op->Flags),
-             SupportsPreserveAllABI};
+    *Info = {FABI_I64_I16_F80_F80, (void*)&FEXCore::CPU::OpHandlers<IR::OP_F80CMP>::handle,
+             (Core::FallbackHandlerIndex)(Core::OPINDEX_F80CMP), SupportsPreserveAllABI};
    return true;
  }

@@ -625,13 +625,17 @@ DEF_OP(ShiftFlags) {

  // Set the output outside the branch to avoid needing an extra leg of the
  // branch. We specifically do not hardcode the PF register anywhere (relying
-  // on a tied SRA register instead) to avoid fighting with RA/RCLSE.
+  // on a tied SRA register instead) to avoid fighting with RA.
  if (PFTemp != PFInput) {
    mov(ARMEmitter::Size::i64Bit, PFTemp, PFInput);
  }

+  // We need to mask the source before comparing it. We don't just skip flag
+  // updates for Src2=0 but anything that masks to zero.
+  and_(ARMEmitter::Size::i32Bit, TMP1, Src2, OpSize == 8 ? 0x3f : 0x1f);
+
  ARMEmitter::SingleUseForwardLabel Done;
-  cbz(EmitSize, Src2, &Done);
+  cbz(EmitSize, TMP1, &Done);
  {
    // PF/SF/ZF/OF
    if (OpSize >= 4) {
@@ -642,20 +646,23 @@ DEF_OP(ShiftFlags) {
      mov(ARMEmitter::Size::i64Bit, PFTemp, Dst);
    }

+    auto CFWord = TMP1;
+    unsigned CFBit = 0;
+
    // Extract the last bit shifted in to CF
    if (Op->Shift == IR::ShiftType::LSL) {
      if (OpSize >= 4) {
-        neg(EmitSize, TMP1, Src2);
+        neg(EmitSize, CFWord, Src2);
+        lsrv(EmitSize, CFWord, Src1, CFWord);
      } else {
-        mov(EmitSize, TMP1, OpSize * 8);
-        sub(EmitSize, TMP1, TMP1, Src2);
+        CFWord = Dst.X();
+        CFBit = (OpSize * 8);
      }
    } else {
-      sub(ARMEmitter::Size::i64Bit, TMP1, Src2, 1);
+      sub(ARMEmitter::Size::i64Bit, CFWord, Src2, 1);
+      lsrv(EmitSize, CFWord, Src1, CFWord);
    }

-    lsrv(EmitSize, TMP1, Src1, TMP1);
-
    bool SetOF = Op->Shift != IR::ShiftType::ASR;
    if (SetOF) {
      // Only defined when Shift is 1 else undefined
@@ -664,14 +671,20 @@ DEF_OP(ShiftFlags) {
    }

    if (CTX->HostFeatures.SupportsFlagM) {
-      rmif(TMP1, 63, (1 << 1) /* C */);
+      rmif(CFWord, (CFBit - 1) % 64, (1 << 1) /* C */);

      if (SetOF) {
        rmif(TMP3, OpSize * 8 - 1, (1 << 0) /* V */);
      }
    } else {
      mrs(TMP2, ARMEmitter::SystemRegister::NZCV);
-      bfi(ARMEmitter::Size::i32Bit, TMP2, TMP1, 29 /* C */, 1);
+
+      if (CFBit != 0) {
+        lsr(ARMEmitter::Size::i64Bit, TMP1, CFWord, CFBit);
+        CFWord = TMP1;
+      }
+
+      bfi(ARMEmitter::Size::i32Bit, TMP2, CFWord, 29 /* C */, 1);

      if (SetOF) {
        lsr(EmitSize, TMP3, TMP3, OpSize * 8 - 1);
@@ -704,59 +717,74 @@ DEF_OP(PDep) {

  const auto Dest = GetReg(Node);

-  // PDep implementation follows the ideas from
-  // http://0x80.pl/articles/pdep-soft-emu.html ... Basically, iterate the *set*
-  // bits only, which will be faster than the naive implementation as long as
-  // there are enough holes in the mask.
-  //
-  // The specific arm64 assembly used is based on the sequence that clang
-  // generates for the C code, giving context to the scheduling yielding better
-  // ILP than I would do by hand. The registers are allocated by hand however,
-  // to fit within the tight constraints we have here withot spilling. Also, we
-  // use cbz/cbnz for conditional branching to avoid clobbering NZCV.
-
  // We can't clobber these
  const auto OrigInput = GetReg(Op->Input.ID());
  const auto OrigMask = GetReg(Op->Mask.ID());

-  // So we have shadow as temporaries
-  const auto Input = TMP1.R();
-  const auto Mask = TMP2.R();
+  if (CTX->HostFeatures.SupportsSVEBitPerm) {
+    // SVE added support for PDEP but it needs to be done in a vector register.
+    if (EmitSize == ARMEmitter::Size::i32Bit) {
+      fmov(ARMEmitter::Size::i32Bit, VTMP1.S(), OrigInput.W());
+      fmov(ARMEmitter::Size::i32Bit, VTMP2.S(), OrigMask.W());
+      bdep(ARMEmitter::SubRegSize::i32Bit, VTMP1.Z(), VTMP1.Z(), VTMP2.Z());
+      umov<ARMEmitter::SubRegSize::i32Bit>(Dest, VTMP1, 0);
+    } else {
+      fmov(ARMEmitter::Size::i64Bit, VTMP1.D(), OrigInput.X());
+      fmov(ARMEmitter::Size::i64Bit, VTMP2.D(), OrigMask.X());
+      bdep(ARMEmitter::SubRegSize::i64Bit, VTMP1.Z(), VTMP1.Z(), VTMP2.Z());
+      umov<ARMEmitter::SubRegSize::i64Bit>(Dest, VTMP1, 0);
+    }
+  } else {
+    // PDep implementation follows the ideas from
+    // http://0x80.pl/articles/pdep-soft-emu.html ... Basically, iterate the *set*
+    // bits only, which will be faster than the naive implementation as long as
+    // there are enough holes in the mask.
+    //
+    // The specific arm64 assembly used is based on the sequence that clang
+    // generates for the C code, giving context to the scheduling yielding better
+    // ILP than I would do by hand. The registers are allocated by hand however,
+    // to fit within the tight constraints we have here withot spilling. Also, we
+    // use cbz/cbnz for conditional branching to avoid clobbering NZCV.

-  // these get used variously as scratch
-  const auto T0 = TMP3.R();
-  const auto T1 = TMP4.R();
+    // So we have shadow as temporaries
+    const auto Input = TMP1.R();
+    const auto Mask = TMP2.R();

-  ARMEmitter::BackwardLabel NextBit;
-  ARMEmitter::SingleUseForwardLabel Done;
+    // these get used variously as scratch
+    const auto T0 = TMP3.R();
+    const auto T1 = TMP4.R();

-  // First, copy the input/mask, since we'll be clobbering. Copy as 64-bit to
-  // make this 0-uop on Firestorm.
-  mov(ARMEmitter::Size::i64Bit, Input, OrigInput);
-  mov(ARMEmitter::Size::i64Bit, Mask, OrigMask);
+    ARMEmitter::BackwardLabel NextBit;
+    ARMEmitter::SingleUseForwardLabel Done;

-  // Now, they're copied, so we can start setting Dest (even if it overlaps with
-  // one of them).  Handle early exit case
-  mov(EmitSize, Dest, 0);
-  cbz(EmitSize, OrigMask, &Done);
+    // First, copy the input/mask, since we'll be clobbering. Copy as 64-bit to
+    // make this 0-uop on Firestorm.
+    mov(ARMEmitter::Size::i64Bit, Input, OrigInput);
+    mov(ARMEmitter::Size::i64Bit, Mask, OrigMask);

-  // Setup for first iteration
-  neg(EmitSize, T0, Mask);
-  and_(EmitSize, T0, T0, Mask);
+    // Now, they're copied, so we can start setting Dest (even if it overlaps with
+    // one of them).  Handle early exit case
+    mov(EmitSize, Dest, 0);
+    cbz(EmitSize, OrigMask, &Done);

-  // Main loop
-  Bind(&NextBit);
-  sbfx(EmitSize, T1, Input, 0, 1);
-  eor(EmitSize, Mask, Mask, T0);
-  and_(EmitSize, T0, T1, T0);
-  neg(EmitSize, T1, Mask);
-  orr(EmitSize, Dest, Dest, T0);
-  lsr(EmitSize, Input, Input, 1);
-  and_(EmitSize, T0, Mask, T1);
-  cbnz(EmitSize, T0, &NextBit);
+    // Setup for first iteration
+    neg(EmitSize, T0, Mask);
+    and_(EmitSize, T0, T0, Mask);

-  // All done with nothing to do.
-  Bind(&Done);
+    // Main loop
+    Bind(&NextBit);
+    sbfx(EmitSize, T1, Input, 0, 1);
+    eor(EmitSize, Mask, Mask, T0);
+    and_(EmitSize, T0, T1, T0);
+    neg(EmitSize, T1, Mask);
+    orr(EmitSize, Dest, Dest, T0);
+    lsr(EmitSize, Input, Input, 1);
+    and_(EmitSize, T0, Mask, T1);
+    cbnz(EmitSize, T0, &NextBit);
+
+    // All done with nothing to do.
+    Bind(&Done);
+  }
 }

 DEF_OP(PExt) {
@@ -769,35 +797,50 @@ DEF_OP(PExt) {
  const auto Mask = GetReg(Op->Mask.ID());
  const auto Dest = GetReg(Node);

-  const auto MaskReg = TMP1;
-  const auto BitReg = TMP2;
-  const auto ValueReg = TMP3;
+  if (CTX->HostFeatures.SupportsSVEBitPerm) {
+    // SVE added support for PEXT but it needs to be done in a vector register.
+    if (EmitSize == ARMEmitter::Size::i32Bit) {
+      fmov(ARMEmitter::Size::i32Bit, VTMP1.S(), Input.W());
+      fmov(ARMEmitter::Size::i32Bit, VTMP2.S(), Mask.W());
+      bext(ARMEmitter::SubRegSize::i32Bit, VTMP1.Z(), VTMP1.Z(), VTMP2.Z());
+      umov<ARMEmitter::SubRegSize::i32Bit>(Dest, VTMP1, 0);
+    } else {
+      fmov(ARMEmitter::Size::i64Bit, VTMP1.D(), Input.X());
+      fmov(ARMEmitter::Size::i64Bit, VTMP2.D(), Mask.X());
+      bext(ARMEmitter::SubRegSize::i64Bit, VTMP1.Z(), VTMP1.Z(), VTMP2.Z());
+      umov<ARMEmitter::SubRegSize::i64Bit>(Dest, VTMP1, 0);
+    }
+  } else {
+    const auto MaskReg = TMP1;
+    const auto BitReg = TMP2;
+    const auto ValueReg = TMP3;

-  ARMEmitter::SingleUseForwardLabel EarlyExit;
-  ARMEmitter::BackwardLabel NextBit;
-  ARMEmitter::SingleUseForwardLabel Done;
+    ARMEmitter::SingleUseForwardLabel EarlyExit;
+    ARMEmitter::BackwardLabel NextBit;
+    ARMEmitter::SingleUseForwardLabel Done;

-  cbz(EmitSize, Mask, &EarlyExit);
-  mov(EmitSize, MaskReg, Mask);
-  mov(EmitSize, ValueReg, Input);
-  mov(EmitSize, Dest, ARMEmitter::Reg::zr);
+    cbz(EmitSize, Mask, &EarlyExit);
+    mov(EmitSize, MaskReg, Mask);
+    mov(EmitSize, ValueReg, Input);
+    mov(EmitSize, Dest, ARMEmitter::Reg::zr);

-  // Main loop
-  Bind(&NextBit);
-  cbz(EmitSize, MaskReg, &Done);
-  clz(EmitSize, BitReg, MaskReg);
-  lslv(EmitSize, ValueReg, ValueReg, BitReg);
-  lslv(EmitSize, MaskReg, MaskReg, BitReg);
-  extr(EmitSize, Dest, Dest, ValueReg, OpSizeBitsM1);
-  bfc(EmitSize, MaskReg, OpSizeBitsM1, 1);
-  b(&NextBit);
+    // Main loop
+    Bind(&NextBit);
+    cbz(EmitSize, MaskReg, &Done);
+    clz(EmitSize, BitReg, MaskReg);
+    lslv(EmitSize, ValueReg, ValueReg, BitReg);
+    lslv(EmitSize, MaskReg, MaskReg, BitReg);
+    extr(EmitSize, Dest, Dest, ValueReg, OpSizeBitsM1);
+    bfc(EmitSize, MaskReg, OpSizeBitsM1, 1);
+    b(&NextBit);

-  // Early exit
-  Bind(&EarlyExit);
-  mov(EmitSize, Dest, ARMEmitter::Reg::zr);
+    // Early exit
+    Bind(&EarlyExit);
+    mov(EmitSize, Dest, ARMEmitter::Reg::zr);

-  // All done with nothing to do.
-  Bind(&Done);
+    // All done with nothing to do.
+    Bind(&Done);
+  }
 }

 DEF_OP(LDiv) {
@@ -184,7 +184,7 @@ DEF_OP(Syscall) {
  if ((Flags & FEXCore::IR::SyscallFlags::NORETURN) != FEXCore::IR::SyscallFlags::NORETURN) {
    // Result is now in x0
    // Fix the stack and any values that were stepped on
-    FillStaticRegs(true, GPRSpillMask, FPRSpillMask);
+    FillStaticRegs(true, GPRSpillMask, FPRSpillMask, ARMEmitter::Reg::r1, ARMEmitter::Reg::r2);

    // Now the registers we've spilled are back in their original host registers
    // We can safely claim we are no longer in a syscall
@@ -285,7 +285,7 @@ DEF_OP(InlineSyscall) {
  if ((Op->Flags & FEXCore::IR::SyscallFlags::NORETURN) != FEXCore::IR::SyscallFlags::NORETURN) {
    // Now that we are done in the syscall we need to carefully peel back the state
    // First unspill the registers from before
-    FillStaticRegs(false, SpillMask);
+    FillStaticRegs(false, SpillMask, ~0U, ARMEmitter::Reg::r8, ARMEmitter::Reg::r1);

    // Now the registers we've spilled are back in their original host registers
    // We can safely claim we are no longer in a syscall
@@ -5,6 +5,7 @@ tags: backend|arm64
 $end_info$
 */

+#include "Interface/Context/Context.h"
 #include "Interface/Core/JIT/Arm64/JITClass.h"

 namespace FEXCore::CPU {
@@ -355,6 +356,39 @@ DEF_OP(Vector_FToF) {
  }
 }

+DEF_OP(VFCVTL2) {
+  const auto Op = IROp->C<IR::IROp_VFCVTL2>();
+
+  const auto SubEmitSize = ConvertSubRegSize248(IROp);
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector = GetVReg(Op->Vector.ID());
+
+  fcvtl2(SubEmitSize, Dst.D(), Vector.D());
+}
+
+DEF_OP(VFCVTN2) {
+  const auto Op = IROp->C<IR::IROp_VFCVTN2>();
+
+  const auto SubEmitSize = ConvertSubRegSize248(IROp);
+
+  const auto Dst = GetVReg(Node);
+  const auto VectorLower = GetVReg(Op->VectorLower.ID());
+  const auto VectorUpper = GetVReg(Op->VectorUpper.ID());
+
+  auto Lower = VectorLower;
+  if (Dst != VectorLower) {
+    mov(VTMP1.Q(), VectorLower.Q());
+    Lower = VTMP1;
+  }
+
+  fcvtn2(SubEmitSize, Lower.Q(), VectorUpper.Q());
+
+  if (Dst != VectorLower) {
+    mov(Dst.Q(), Lower.Q());
+  }
+}
+
 DEF_OP(Vector_FToI) {
  const auto Op = IROp->C<IR::IROp_Vector_FToI>();
  const auto OpSize = IROp->Size;
@@ -416,5 +450,63 @@ DEF_OP(Vector_FToI) {
  }
 }

+DEF_OP(Vector_F64ToI32) {
+  const auto Op = IROp->C<IR::IROp_Vector_F64ToI32>();
+  const auto OpSize = IROp->Size;
+  const auto Round = Op->Round;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector = GetVReg(Op->Vector.ID());
+  if (HostSupportsSVE128 || HostSupportsSVE256) {
+    const auto Mask = Is256Bit ? PRED_TMP_32B.Merging() : PRED_TMP_16B.Merging();
+    // First step is to round the f64 values to integrals (frint*)
+    // Then convert to integers using fcvtzs.
+    auto CVTReg = Dst.Z();
+    switch (Round) {
+    case IR::Round_Nearest.Val: frintn(ARMEmitter::SubRegSize::i64Bit, Dst.Z(), Mask, Vector.Z()); break;
+    case IR::Round_Negative_Infinity.Val: frintm(ARMEmitter::SubRegSize::i64Bit, Dst.Z(), Mask, Vector.Z()); break;
+    case IR::Round_Positive_Infinity.Val: frintp(ARMEmitter::SubRegSize::i64Bit, Dst.Z(), Mask, Vector.Z()); break;
+    case IR::Round_Towards_Zero.Val: CVTReg = Vector.Z(); break;
+    case IR::Round_Host.Val: frinti(ARMEmitter::SubRegSize::i64Bit, Dst.Z(), Mask, Vector.Z()); break;
+    }
+
+    fcvtzs(Dst.Z(), ARMEmitter::SubRegSize::i32Bit, Mask, CVTReg, ARMEmitter::SubRegSize::i64Bit);
+
+    ///< Fixup format of register that fcvtzs returns.
+    uzp1(ARMEmitter::SubRegSize::i32Bit, Dst.Z(), Dst.Z(), Dst.Z());
+    if (Op->EnsureZeroUpperHalf) {
+      ///< Match CVTPD2DQ/CVTTPD2DQ behaviour if necessary by zeroing the upper bits here.
+      if (Is256Bit) {
+        mov(Dst.Q(), Dst.Q());
+      } else {
+        mov(Dst.D(), Dst.D());
+      }
+    }
+  } else {
+    // This has a known precision issue that isn't easily resolvable without throwing away performance.
+    // Doing the conversion in multi-stage steps has an issue that you can lose precision in the f32->i32 step if your source was f64.
+    // To get around this with ASIMD FEX needs to use fcvtzs (Scalar, Integer, to GPR) for each F64 to be directly converted to i32.
+    // This is a very costly transform that the SVE path doesn't need to do since it supports f64->i32 directly.
+    // If this precision issue is necessary then we can add an option for it in the future.
+
+    ///< Round float to integral depending on rounding mode.
+    switch (Round) {
+    case FEXCore::IR::Round_Nearest.Val: frintn(ARMEmitter::SubRegSize::i64Bit, Dst.Q(), Vector.Q()); break;
+    case FEXCore::IR::Round_Negative_Infinity.Val: frintm(ARMEmitter::SubRegSize::i64Bit, Dst.Q(), Vector.Q()); break;
+    case FEXCore::IR::Round_Positive_Infinity.Val: frintp(ARMEmitter::SubRegSize::i64Bit, Dst.Q(), Vector.Q()); break;
+    case FEXCore::IR::Round_Towards_Zero.Val: frintz(ARMEmitter::SubRegSize::i64Bit, Dst.Q(), Vector.Q()); break;
+    case FEXCore::IR::Round_Host.Val: frinti(ARMEmitter::SubRegSize::i64Bit, Dst.Q(), Vector.Q()); break;
+    }
+
+    // Now narrow from f64 to f32.
+    fcvtn(ARMEmitter::SubRegSize::i32Bit, Dst.Q(), Dst.Q());
+
+    ///< Convert the two F32 integrals to real integers.
+    fcvtzs(ARMEmitter::SubRegSize::i32Bit, Dst.D(), Dst.D());
+  }
+}
+
 #undef DEF_OP
 } // namespace FEXCore::CPU
@@ -1,18 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
-$info$
-tags: backend|arm64
-$end_info$
-*/
-
-#include "Interface/Core/JIT/Arm64/JITClass.h"
-
-namespace FEXCore::CPU {
-#define DEF_OP(x) void Arm64JITCore::Op_##x(IR::IROp_Header const* IROp, IR::NodeID Node)
-DEF_OP(GetHostFlag) {
-  auto Op = IROp->C<IR::IROp_GetHostFlag>();
-  ubfx(ARMEmitter::Size::i64Bit, GetReg(Node), GetReg(Op->Value.ID()), Op->Flag, 1);
-}
-
-#undef DEF_OP
-} // namespace FEXCore::CPU
@@ -47,8 +47,8 @@ static uint64_t LUDIV(uint64_t SrcHigh, uint64_t SrcLow, uint64_t Divisor) {
  return Res;
 }

-static int64_t LDIV(int64_t SrcHigh, int64_t SrcLow, int64_t Divisor) {
-  __int128_t Source = (static_cast<__int128_t>(SrcHigh) << 64) | SrcLow;
+static int64_t LDIV(uint64_t SrcHigh, uint64_t SrcLow, int64_t Divisor) {
+  __int128_t Source = (static_cast<__uint128_t>(SrcHigh) << 64) | SrcLow;
  __int128_t Res = Source / Divisor;
  return Res;
 }
@@ -59,8 +59,8 @@ static uint64_t LUREM(uint64_t SrcHigh, uint64_t SrcLow, uint64_t Divisor) {
  return Res;
 }

-static int64_t LREM(int64_t SrcHigh, int64_t SrcLow, int64_t Divisor) {
-  __int128_t Source = (static_cast<__int128_t>(SrcHigh) << 64) | SrcLow;
+static int64_t LREM(uint64_t SrcHigh, uint64_t SrcLow, int64_t Divisor) {
+  __int128_t Source = (static_cast<__uint128_t>(SrcHigh) << 64) | SrcLow;
  __int128_t Res = Source % Divisor;
  return Res;
 }
@@ -496,7 +496,7 @@ static uint64_t Arm64JITCore_ExitFunctionLink(FEXCore::Core::CpuStateFrame* Fram
  uintptr_t branch = (uintptr_t)(Record)-8;

  auto offset = HostCode / 4 - branch / 4;
-  if (vixl::IsInt26(offset)) {
+  if (ARMEmitter::Emitter::IsInt26(offset)) {
    // optimal case - can branch directly
    // patch the code
    ARMEmitter::Emitter emit((uint8_t*)(branch), 4);
@@ -521,8 +521,9 @@ void Arm64JITCore::Op_NoOp(const IR::IROp_Header* IROp, IR::NodeID Node) {}
 Arm64JITCore::Arm64JITCore(FEXCore::Context::ContextImpl* ctx, FEXCore::Core::InternalThreadState* Thread)
  : CPUBackend(Thread, INITIAL_CODE_SIZE, MAX_CODE_SIZE)
  , Arm64Emitter(ctx)
-  , HostSupportsSVE128 {ctx->HostFeatures.SupportsSVE}
-  , HostSupportsSVE256 {ctx->HostFeatures.SupportsAVX}
+  , HostSupportsSVE128 {ctx->HostFeatures.SupportsSVE128}
+  , HostSupportsSVE256 {ctx->HostFeatures.SupportsSVE256}
+  , HostSupportsAVX256 {ctx->HostFeatures.SupportsAVX && ctx->HostFeatures.SupportsSVE256}
  , HostSupportsRPRES {ctx->HostFeatures.SupportsRPRES}
  , HostSupportsAFP {ctx->HostFeatures.SupportsAFP}
  , CTX {ctx} {
@@ -723,14 +724,12 @@ CPUBackend::CompiledCode Arm64JITCore::CompileCode(uint64_t Entry, const FEXCore
         offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState));
  }

-  // LOGMAN_THROW_A_FMT(RAData->HasFullRA(), "Arm64 JIT only works with RA");
-
  SpillSlots = RAData->SpillSlots();

  if (SpillSlots) {
    const auto TotalSpillSlotsSize = SpillSlots * MaxSpillSlotSize;

-    if (vixl::aarch64::Assembler::IsImmAddSub(TotalSpillSlotsSize)) {
+    if (ARMEmitter::IsImmAddSub(TotalSpillSlotsSize)) {
      sub(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, TotalSpillSlotsSize);
    } else {
      LoadConstant(ARMEmitter::Size::i64Bit, TMP1, TotalSpillSlotsSize);
@@ -873,7 +872,7 @@ void Arm64JITCore::ResetStack() {

  const auto TotalSpillSlotsSize = SpillSlots * MaxSpillSlotSize;

-  if (vixl::aarch64::Assembler::IsImmAddSub(TotalSpillSlotsSize)) {
+  if (ARMEmitter::IsImmAddSub(TotalSpillSlotsSize)) {
    add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, TotalSpillSlotsSize);
  } else {
    // Too big to fit in a 12bit immediate
@@ -886,12 +885,4 @@ fextl::unique_ptr<CPUBackend> CreateArm64JITCore(FEXCore::Context::ContextImpl*
  return fextl::make_unique<Arm64JITCore>(ctx, Thread);
 }

-CPUBackendFeatures GetArm64JITBackendFeatures() {
-  return CPUBackendFeatures {
-    .SupportsFlags = true,
-    .SupportsSaturatingRoundingShifts = true,
-    .SupportsVTBL2 = true,
-  };
-}
-
 } // namespace FEXCore::CPU
@@ -72,6 +72,7 @@ private:

  const bool HostSupportsSVE128 {};
  const bool HostSupportsSVE256 {};
+  const bool HostSupportsAVX256 {};
  const bool HostSupportsRPRES {};
  const bool HostSupportsAFP {};

@@ -344,6 +345,10 @@ private:
  uint32_t SpillSlots {};
  using OpType = void (Arm64JITCore::*)(const IR::IROp_Header* IROp, IR::NodeID Node);

+  using ScalarFMAOpCaller =
+    std::function<void(ARMEmitter::VRegister Dst, ARMEmitter::VRegister Src1, ARMEmitter::VRegister Src2, ARMEmitter::VRegister Src3)>;
+  void VFScalarFMAOperation(uint8_t OpSize, uint8_t ElementSize, ScalarFMAOpCaller ScalarEmit, ARMEmitter::VRegister Dst,
+                            ARMEmitter::VRegister Vector1, ARMEmitter::VRegister Vector2, ARMEmitter::VRegister Addend);
  using ScalarBinaryOpCaller = std::function<void(ARMEmitter::VRegister Dst, ARMEmitter::VRegister Src1, ARMEmitter::VRegister Src2)>;
  void VFScalarOperation(uint8_t OpSize, uint8_t ElementSize, bool ZeroUpperBits, ScalarBinaryOpCaller ScalarEmit,
                         ARMEmitter::VRegister Dst, ARMEmitter::VRegister Vector1, ARMEmitter::VRegister Vector2);
@@ -351,6 +356,10 @@ private:
  void VFScalarUnaryOperation(uint8_t OpSize, uint8_t ElementSize, bool ZeroUpperBits, ScalarUnaryOpCaller ScalarEmit, ARMEmitter::VRegister Dst,
                              ARMEmitter::VRegister Vector1, std::variant<ARMEmitter::VRegister, ARMEmitter::Register> Vector2);

+  void Emulate128BitGather(size_t Size, size_t ElementSize, ARMEmitter::VRegister Dst, ARMEmitter::VRegister IncomingDst,
+                           std::optional<ARMEmitter::Register> BaseAddr, ARMEmitter::VRegister VectorIndexLow,
+                           std::optional<ARMEmitter::VRegister> VectorIndexHigh, ARMEmitter::VRegister MaskReg, size_t VectorIndexSize,
+                           size_t DataElementOffsetStart, size_t IndexElementOffsetStart, uint8_t OffsetScale);
  // Runtime selection;
  // Load and store TSO memory style
  OpType RT_LoadMemTSO;
@@ -52,7 +52,7 @@ DEF_OP(StoreContext) {
  const auto OpSize = IROp->Size;

  if (Op->Class == FEXCore::IR::GPRClass) {
-    auto Src = GetReg(Op->Value.ID());
+    auto Src = GetZeroableReg(Op->Value);

    switch (OpSize) {
    case 1: strb(Src, STATE, Op->Offset); break;
@@ -99,7 +99,7 @@ DEF_OP(LoadRegister) {
      }
    }
  } else if (Op->Class == IR::FPRClass) {
-    const auto regSize = HostSupportsSVE256 ? Core::CPUState::XMM_AVX_REG_SIZE : Core::CPUState::XMM_SSE_REG_SIZE;
+    [[maybe_unused]] const auto regSize = HostSupportsAVX256 ? Core::CPUState::XMM_AVX_REG_SIZE : Core::CPUState::XMM_SSE_REG_SIZE;
    LOGMAN_THROW_A_FMT(Op->Reg < StaticFPRegisters.size(), "out of range reg");
    LOGMAN_THROW_A_FMT(OpSize == regSize, "expected sized");

@@ -107,7 +107,7 @@ DEF_OP(LoadRegister) {
    const auto host = GetVReg(Node);

    if (host.Idx() != guest.Idx()) {
-      if (HostSupportsSVE256) {
+      if (HostSupportsAVX256) {
        mov(ARMEmitter::SubRegSize::i64Bit, host.Z(), PRED_TMP_32B.Merging(), guest.Z());
      } else {
        mov(host.Q(), guest.Q());
@@ -120,8 +120,6 @@ DEF_OP(LoadRegister) {

 DEF_OP(StoreRegister) {
  const auto Op = IROp->C<IR::IROp_StoreRegister>();
-  const auto OpSize = IROp->Size;
-

  if (Op->Class == IR::GPRClass) {
    unsigned Reg = Op->Reg == Core::CPUState::PF_AS_GREG ? (StaticRegisters.size() - 2) :
@@ -137,15 +135,15 @@ DEF_OP(StoreRegister) {
      mov(ARMEmitter::Size::i64Bit, reg, Src);
    }
  } else if (Op->Class == IR::FPRClass) {
-    const auto regSize = HostSupportsSVE256 ? Core::CPUState::XMM_AVX_REG_SIZE : Core::CPUState::XMM_SSE_REG_SIZE;
+    [[maybe_unused]] const auto regSize = HostSupportsAVX256 ? Core::CPUState::XMM_AVX_REG_SIZE : Core::CPUState::XMM_SSE_REG_SIZE;
    LOGMAN_THROW_A_FMT(Op->Reg < StaticFPRegisters.size(), "reg out of range");
-    LOGMAN_THROW_A_FMT(OpSize == regSize, "expected sized");
+    LOGMAN_THROW_A_FMT(IROp->Size == regSize, "expected sized");

    const auto guest = StaticFPRegisters[Op->Reg];
    const auto host = GetVReg(Op->Value.ID());

    if (guest.Idx() != host.Idx()) {
-      if (HostSupportsSVE256) {
+      if (HostSupportsAVX256) {
        mov(ARMEmitter::SubRegSize::i64Bit, guest.Z(), PRED_TMP_32B.Merging(), host.Z());
      } else {
        mov(guest.Q(), host.Q());
@@ -531,25 +529,6 @@ DEF_OP(LoadDF) {
  ldrsb(Dst.X(), STATE, offsetof(FEXCore::Core::CPUState, flags[Flag]));
 }

-DEF_OP(LoadFlag) {
-  auto Op = IROp->C<IR::IROp_LoadFlag>();
-  auto Dst = GetReg(Node);
-
-  LOGMAN_THROW_A_FMT(Op->Flag != X86State::RFLAG_PF_RAW_LOC && Op->Flag != X86State::RFLAG_AF_RAW_LOC, "PF/AF must be accessed as "
-                                                                                                       "registers");
-
-  ldrb(Dst, STATE, offsetof(FEXCore::Core::CPUState, flags[0]) + Op->Flag);
-}
-
-DEF_OP(StoreFlag) {
-  auto Op = IROp->C<IR::IROp_StoreFlag>();
-
-  LOGMAN_THROW_A_FMT(Op->Flag != X86State::RFLAG_PF_RAW_LOC && Op->Flag != X86State::RFLAG_AF_RAW_LOC, "PF/AF must be accessed as "
-                                                                                                       "registers");
-
-  strb(GetReg(Op->Value.ID()), STATE, offsetof(FEXCore::Core::CPUState, flags[0]) + Op->Flag);
-}
-
 ARMEmitter::ExtendedMemOperand Arm64JITCore::GenerateMemOperand(
  uint8_t AccessSize, ARMEmitter::Register Base, IR::OrderedNodeWrapper Offset, IR::MemOffsetType OffsetType, uint8_t OffsetScale) {
  if (Offset.IsInvalid()) {
@@ -752,12 +731,14 @@ DEF_OP(LoadMemTSO) {
 }

 DEF_OP(VLoadVectorMasked) {
-  LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE support in order to use VLoadVectorMasked");

  const auto Op = IROp->C<IR::IROp_VLoadVectorMasked>();
  const auto OpSize = IROp->Size;

  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  if (Is256Bit) {
+    LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE256 support in order to use VLoadVectorMasked with 256-bit operation");
+  }
  const auto SubRegSize = ConvertSubRegSize8(IROp);

  const auto CMPPredicate = ARMEmitter::PReg::p0;
@@ -766,39 +747,95 @@ DEF_OP(VLoadVectorMasked) {
  const auto Dst = GetVReg(Node);
  const auto MaskReg = GetVReg(Op->Mask.ID());
  const auto MemReg = GetReg(Op->Addr.ID());
-  const auto MemSrc = GenerateSVEMemOperand(OpSize, MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);

-  // Check if the sign bit is set for the given element size.
-  cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+  if (HostSupportsSVE128 || HostSupportsSVE256) {
+    const auto MemSrc = GenerateSVEMemOperand(OpSize, MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);

-  switch (IROp->ElementSize) {
-  case 1: {
-    ld1b<ARMEmitter::SubRegSize::i8Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
-    break;
-  }
-  case 2: {
-    ld1h<ARMEmitter::SubRegSize::i16Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
-    break;
-  }
-  case 4: {
-    ld1w<ARMEmitter::SubRegSize::i32Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
-    break;
-  }
-  case 8: {
-    ld1d(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
-    break;
-  }
-  default: break;
+    // Check if the sign bit is set for the given element size.
+    cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+
+    switch (IROp->ElementSize) {
+    case 1: {
+      ld1b<ARMEmitter::SubRegSize::i8Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    case 2: {
+      ld1h<ARMEmitter::SubRegSize::i16Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    case 4: {
+      ld1w<ARMEmitter::SubRegSize::i32Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    case 8: {
+      ld1d(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    default: break;
+    }
+  } else {
+    const auto PerformMove = [this](size_t ElementSize, const ARMEmitter::Register Dst, const ARMEmitter::VRegister Vector, int index) {
+      switch (ElementSize) {
+      case 1: umov<ARMEmitter::SubRegSize::i8Bit>(Dst, Vector, index); break;
+      case 2: umov<ARMEmitter::SubRegSize::i16Bit>(Dst, Vector, index); break;
+      case 4: umov<ARMEmitter::SubRegSize::i32Bit>(Dst, Vector, index); break;
+      case 8: umov<ARMEmitter::SubRegSize::i64Bit>(Dst, Vector, index); break;
+      default: LOGMAN_MSG_A_FMT("Unhandled ExtractElementSize: {}", ElementSize); break;
+      }
+    };
+
+    // Prepare yourself adventurer. For a masked load without instructions that implement it.
+    LOGMAN_THROW_A_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE, "Only supports 128-bit without SVE256");
+    size_t NumElements = IROp->Size / IROp->ElementSize;
+
+    // Use VTMP1 as the temporary destination
+    auto TempDst = VTMP1;
+    auto WorkingReg = TMP1;
+    auto TempMemReg = MemReg;
+    movi(ARMEmitter::SubRegSize::i64Bit, TempDst.Q(), 0);
+    LOGMAN_THROW_A_FMT(Op->Offset.IsInvalid(), "Complex addressing requested and not supported!");
+
+    const uint64_t ElementSizeInBits = IROp->ElementSize * 8;
+    for (size_t i = 0; i < NumElements; ++i) {
+      // Extract the mask element.
+      PerformMove(IROp->ElementSize, WorkingReg, MaskReg, i);
+
+      // If the sign bit is zero then skip the load
+      ARMEmitter::SingleUseForwardLabel Skip {};
+      tbz(WorkingReg, ElementSizeInBits - 1, &Skip);
+      // Do the gather load for this element into the destination
+      switch (IROp->ElementSize) {
+      case 1: ld1<ARMEmitter::SubRegSize::i8Bit>(TempDst.Q(), i, TempMemReg); break;
+      case 2: ld1<ARMEmitter::SubRegSize::i16Bit>(TempDst.Q(), i, TempMemReg); break;
+      case 4: ld1<ARMEmitter::SubRegSize::i32Bit>(TempDst.Q(), i, TempMemReg); break;
+      case 8: ld1<ARMEmitter::SubRegSize::i64Bit>(TempDst.Q(), i, TempMemReg); break;
+      case 16: ldr(TempDst.Q(), TempMemReg, 0); break;
+      default: LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, IROp->ElementSize); return;
+      }
+
+      Bind(&Skip);
+
+      if ((i + 1) != NumElements) {
+        // Handle register rename to save a move.
+        auto WorkingReg = TempMemReg;
+        TempMemReg = TMP2;
+        add(ARMEmitter::Size::i64Bit, TempMemReg, WorkingReg, IROp->ElementSize);
+      }
+    }
+
+    // Move result.
+    mov(Dst.Q(), TempDst.Q());
  }
 }

 DEF_OP(VStoreVectorMasked) {
-  LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE support in order to use VStoreVectorMasked");
-
  const auto Op = IROp->C<IR::IROp_VStoreVectorMasked>();
  const auto OpSize = IROp->Size;

  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  if (Is256Bit) {
+    LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE256 support in order to use VStoreVectorMasked with 256-bit operation");
+  }
  const auto SubRegSize = ConvertSubRegSize8(IROp);

  const auto CMPPredicate = ARMEmitter::PReg::p0;
@@ -807,29 +844,366 @@ DEF_OP(VStoreVectorMasked) {
  const auto RegData = GetVReg(Op->Data.ID());
  const auto MaskReg = GetVReg(Op->Mask.ID());
  const auto MemReg = GetReg(Op->Addr.ID());
-  const auto MemDst = GenerateSVEMemOperand(OpSize, MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);
+  if (HostSupportsSVE128 || HostSupportsSVE256) {
+    const auto MemDst = GenerateSVEMemOperand(OpSize, MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);

-  // Check if the sign bit is set for the given element size.
-  cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+    // Check if the sign bit is set for the given element size.
+    cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);

-  switch (IROp->ElementSize) {
-  case 1: {
-    st1b<ARMEmitter::SubRegSize::i8Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
-    break;
+    switch (IROp->ElementSize) {
+    case 1: {
+      st1b<ARMEmitter::SubRegSize::i8Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 2: {
+      st1h<ARMEmitter::SubRegSize::i16Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 4: {
+      st1w<ARMEmitter::SubRegSize::i32Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 8: {
+      st1d(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    default: break;
+    }
+  } else {
+    const auto PerformMove = [this](size_t ElementSize, const ARMEmitter::Register Dst, const ARMEmitter::VRegister Vector, int index) {
+      switch (ElementSize) {
+      case 1: umov<ARMEmitter::SubRegSize::i8Bit>(Dst, Vector, index); break;
+      case 2: umov<ARMEmitter::SubRegSize::i16Bit>(Dst, Vector, index); break;
+      case 4: umov<ARMEmitter::SubRegSize::i32Bit>(Dst, Vector, index); break;
+      case 8: umov<ARMEmitter::SubRegSize::i64Bit>(Dst, Vector, index); break;
+      default: LOGMAN_MSG_A_FMT("Unhandled ExtractElementSize: {}", ElementSize); break;
+      }
+    };
+
+    // Prepare yourself adventurer. For a masked store without instructions that implement it.
+    LOGMAN_THROW_A_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE, "Only supports 128-bit without SVE256");
+    size_t NumElements = IROp->Size / IROp->ElementSize;
+
+    // Use VTMP1 as the temporary destination
+    auto WorkingReg = TMP1;
+    auto TempMemReg = MemReg;
+    LOGMAN_THROW_A_FMT(Op->Offset.IsInvalid(), "Complex addressing requested and not supported!");
+
+    const uint64_t ElementSizeInBits = IROp->ElementSize * 8;
+    for (size_t i = 0; i < NumElements; ++i) {
+      // Extract the mask element.
+      PerformMove(IROp->ElementSize, WorkingReg, MaskReg, i);
+
+      // If the sign bit is zero then skip the load
+      ARMEmitter::SingleUseForwardLabel Skip {};
+      tbz(WorkingReg, ElementSizeInBits - 1, &Skip);
+      // Do the gather load for this element into the destination
+      switch (IROp->ElementSize) {
+      case 1: st1<ARMEmitter::SubRegSize::i8Bit>(RegData.Q(), i, TempMemReg); break;
+      case 2: st1<ARMEmitter::SubRegSize::i16Bit>(RegData.Q(), i, TempMemReg); break;
+      case 4: st1<ARMEmitter::SubRegSize::i32Bit>(RegData.Q(), i, TempMemReg); break;
+      case 8: st1<ARMEmitter::SubRegSize::i64Bit>(RegData.Q(), i, TempMemReg); break;
+      case 16: str(RegData.Q(), TempMemReg, 0); break;
+      default: LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, IROp->ElementSize); return;
+      }
+
+      Bind(&Skip);
+
+      if ((i + 1) != NumElements) {
+        // Handle register rename to save a move.
+        auto WorkingReg = TempMemReg;
+        TempMemReg = TMP2;
+        add(ARMEmitter::Size::i64Bit, TempMemReg, WorkingReg, IROp->ElementSize);
+      }
+    }
  }
-  case 2: {
-    st1h<ARMEmitter::SubRegSize::i16Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
-    break;
+}
+
+void Arm64JITCore::Emulate128BitGather(
+  size_t Size, size_t ElementSize, ARMEmitter::VRegister Dst, ARMEmitter::VRegister IncomingDst,
+  std::optional<ARMEmitter::Register> BaseAddr, ARMEmitter::VRegister VectorIndexLow, std::optional<ARMEmitter::VRegister> VectorIndexHigh,
+  ARMEmitter::VRegister MaskReg, size_t VectorIndexSize, size_t DataElementOffsetStart, size_t IndexElementOffsetStart, uint8_t OffsetScale) {
+
+  const auto PerformSMove = [this](size_t ElementSize, const ARMEmitter::Register Dst, const ARMEmitter::VRegister Vector, int index) {
+    switch (ElementSize) {
+    case 1: smov<ARMEmitter::SubRegSize::i8Bit>(Dst.X(), Vector, index); break;
+    case 2: smov<ARMEmitter::SubRegSize::i16Bit>(Dst.X(), Vector, index); break;
+    case 4: smov<ARMEmitter::SubRegSize::i32Bit>(Dst.X(), Vector, index); break;
+    case 8: umov<ARMEmitter::SubRegSize::i64Bit>(Dst.X(), Vector, index); break;
+    default: LOGMAN_MSG_A_FMT("Unhandled ExtractElementSize: {}", ElementSize); break;
+    }
+  };
+
+  const auto PerformMove = [this](size_t ElementSize, const ARMEmitter::Register Dst, const ARMEmitter::VRegister Vector, int index) {
+    switch (ElementSize) {
+    case 1: umov<ARMEmitter::SubRegSize::i8Bit>(Dst, Vector, index); break;
+    case 2: umov<ARMEmitter::SubRegSize::i16Bit>(Dst, Vector, index); break;
+    case 4: umov<ARMEmitter::SubRegSize::i32Bit>(Dst, Vector, index); break;
+    case 8: umov<ARMEmitter::SubRegSize::i64Bit>(Dst, Vector, index); break;
+    default: LOGMAN_MSG_A_FMT("Unhandled ExtractElementSize: {}", ElementSize); break;
+    }
+  };
+
+  // FEX needs to use a temporary destination vector register in a couple of instances.
+  // When Dst overlaps MaskReg, VectorIndexLow, or VectorIndexHigh
+  // Due to x86 gather instruction limitations, it is highly likely that a destination temporary isn't required.
+  const bool NeedsDestTmp = Dst == MaskReg || Dst == VectorIndexLow || (VectorIndexHigh.has_value() && Dst == *VectorIndexHigh);
+
+  // If the incoming destination isn't the destination then we need to move.
+  const bool NeedsIncomingDestMove = Dst != IncomingDst || NeedsDestTmp;
+
+  ///< Adventurers beware, emulated ASIMD style gather masked load operation.
+  // Number of elements to load is calculated by the number of index elements available.
+  size_t NumAddrElements = (VectorIndexHigh.has_value() ? 32 : 16) / VectorIndexSize;
+  // The number of elements is clamped by the resulting register size.
+  size_t NumDataElements = std::min<size_t>(Size / ElementSize, NumAddrElements);
+
+  size_t IndexElementsSizeBytes = NumAddrElements * VectorIndexSize;
+  if (IndexElementsSizeBytes > 16) {
+    // We must have a high register in this case.
+    LOGMAN_THROW_A_FMT(VectorIndexHigh.has_value(), "Need High vector index register!");
  }
-  case 4: {
-    st1w<ARMEmitter::SubRegSize::i32Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
-    break;
+
+  auto ResultReg = Dst;
+  if (NeedsDestTmp) {
+    // Use VTMP1 as the temporary destination
+    ResultReg = VTMP1;
  }
-  case 8: {
-    st1d(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
-    break;
+  auto WorkingReg = TMP1;
+  auto TempMemReg = TMP2;
+  const uint64_t ElementSizeInBits = ElementSize * 8;
+
+  if (NeedsIncomingDestMove) {
+    mov(ResultReg.Q(), IncomingDst.Q());
  }
-  default: break;
+
+  for (size_t i = DataElementOffsetStart, IndexElement = IndexElementOffsetStart; i < NumDataElements; ++i, ++IndexElement) {
+    ARMEmitter::SingleUseForwardLabel Skip {};
+    // Extract mask element
+    PerformMove(ElementSize, WorkingReg, MaskReg, i);
+
+    // Skip if the mask's sign bit isn't set
+    tbz(WorkingReg, ElementSizeInBits - 1, &Skip);
+
+    // Extract Index Element
+    if ((IndexElement * VectorIndexSize) >= 16) {
+      // Fetch from the high index register.
+      PerformSMove(VectorIndexSize, WorkingReg, *VectorIndexHigh, IndexElement - (16 / VectorIndexSize));
+    } else {
+      // Fetch from the low index register.
+      PerformSMove(VectorIndexSize, WorkingReg, VectorIndexLow, IndexElement);
+    }
+
+    // Calculate memory position for this gather load
+    if (BaseAddr.has_value()) {
+      if (VectorIndexSize == 4) {
+        add(ARMEmitter::Size::i64Bit, TempMemReg, *BaseAddr, WorkingReg, ARMEmitter::ExtendedType::SXTW, FEXCore::ilog2(OffsetScale));
+      } else {
+        add(ARMEmitter::Size::i64Bit, TempMemReg, *BaseAddr, WorkingReg, ARMEmitter::ShiftType::LSL, FEXCore::ilog2(OffsetScale));
+      }
+    } else {
+      ///< In this case we have no base address, All addresses come from the vector register itself
+      if (VectorIndexSize == 4) {
+        // Sign extend and shift in to the 64-bit register
+        sbfiz(ARMEmitter::Size::i64Bit, TempMemReg, WorkingReg, FEXCore::ilog2(OffsetScale), 32);
+      } else {
+        lsl(ARMEmitter::Size::i64Bit, TempMemReg, WorkingReg, FEXCore::ilog2(OffsetScale));
+      }
+    }
+
+    // Now that the address is calculated. Do the load.
+    switch (ElementSize) {
+    case 1: ld1<ARMEmitter::SubRegSize::i8Bit>(ResultReg.Q(), i, TempMemReg); break;
+    case 2: ld1<ARMEmitter::SubRegSize::i16Bit>(ResultReg.Q(), i, TempMemReg); break;
+    case 4: ld1<ARMEmitter::SubRegSize::i32Bit>(ResultReg.Q(), i, TempMemReg); break;
+    case 8: ld1<ARMEmitter::SubRegSize::i64Bit>(ResultReg.Q(), i, TempMemReg); break;
+    case 16: ldr(ResultReg.Q(), TempMemReg, 0); break;
+    default: LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, ElementSize); FEX_UNREACHABLE;
+    }
+
+    Bind(&Skip);
+  }
+
+  if (NeedsDestTmp) {
+    // Move result.
+    mov(Dst.Q(), ResultReg.Q());
+  }
+}
+
+DEF_OP(VLoadVectorGatherMasked) {
+  const auto Op = IROp->C<IR::IROp_VLoadVectorGatherMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto VectorIndexSize = Op->VectorIndexElementSize;
+  const auto OffsetScale = Op->OffsetScale;
+  const auto DataElementOffsetStart = Op->DataElementOffsetStart;
+  const auto IndexElementOffsetStart = Op->IndexElementOffsetStart;
+
+  ///< This IR operation handles discontiguous masked gather loadstore instructions. Some things to note about its behaviour.
+  ///  - VSIB behaviour is mostly entirely exposed in the IR operation directly.
+  ///    - Displacement is the only value missing as that can be added directly to AddrBase.
+  ///  - VectorIndex{Low,High} contains the index offsets for each element getting loaded.
+  ///     - These element sizes are decoupled from the resulting element size. These can be 32-bit or 64-bit.
+  ///     - When the element size is 32-bit then the value is zero-extended to the full 64-bit address calculation
+  ///     - When loading a 128-bit result with 64-bit VectorIndex Elements, this requires the use of both VectorIndexLow and VectorIndexHigh
+  ///     to get enough pointers.
+  ///  - When VectorIndexElementSize and OffsetScale matches Arm64 SVE behaviour then the operation becomes more optimal
+  ///     - When the behaviour doesn't match then it gets decomposed to ASIMD style masked load.
+  ///  - AddrBase also doesn't need to exist
+  ///     - If the instruction is using 64-bit vector indexing or 32-bit addresses where the top-bit isn't set then this is valid!
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  if (Is256Bit) {
+    LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE256 support in order to use VStoreVectorMasked with 256-bit operation");
+  }
+
+  const auto Dst = GetVReg(Node);
+  const auto IncomingDst = GetVReg(Op->Incoming.ID());
+
+  const auto MaskReg = GetVReg(Op->Mask.ID());
+  std::optional<ARMEmitter::Register> BaseAddr = !Op->AddrBase.IsInvalid() ? std::make_optional(GetReg(Op->AddrBase.ID())) : std::nullopt;
+  const auto VectorIndexLow = GetVReg(Op->VectorIndexLow.ID());
+  std::optional<ARMEmitter::VRegister> VectorIndexHigh =
+    !Op->VectorIndexHigh.IsInvalid() ? std::make_optional(GetVReg(Op->VectorIndexHigh.ID())) : std::nullopt;
+
+  ///< If the host supports SVE and the offset scale matches SVE limitations then it can do an SVE style load.
+  const bool SupportsSVELoad = (HostSupportsSVE128 || HostSupportsSVE256) && (OffsetScale == 1 || OffsetScale == VectorIndexSize) &&
+                               VectorIndexSize == IROp->ElementSize;
+
+  if (SupportsSVELoad) {
+    uint8_t SVEScale = FEXCore::ilog2(OffsetScale);
+    ARMEmitter::SVEModType ModType = ARMEmitter::SVEModType::MOD_NONE;
+    if (VectorIndexSize == 4) {
+      ModType = ARMEmitter::SVEModType::MOD_SXTW;
+    } else if (VectorIndexSize == 8 && OffsetScale != 1) {
+      ModType = ARMEmitter::SVEModType::MOD_LSL;
+    }
+
+    const auto SubRegSize = ConvertSubRegSize8(IROp);
+
+    const auto CMPPredicate = ARMEmitter::PReg::p0;
+    const auto GoverningPredicate = Is256Bit ? PRED_TMP_32B : PRED_TMP_16B;
+
+    // Check if the sign bit is set for the given element size.
+    cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+    auto TempDst = VTMP1;
+
+    // No need to load a temporary register in the case that we weren't provided a base address and there is no scaling.
+    ARMEmitter::SVEMemOperand MemDst {ARMEmitter::SVEMemOperand(VectorIndexLow.Z(), 0)};
+    if (BaseAddr.has_value() || OffsetScale != 1) {
+      ARMEmitter::Register AddrReg = TMP1;
+      if (BaseAddr.has_value()) {
+        AddrReg = GetReg(Op->AddrBase.ID());
+      } else {
+        ///< OpcodeDispatcher didn't provide a Base address while SVE requires one.
+        LoadConstant(ARMEmitter::Size::i64Bit, AddrReg, 0);
+      }
+      MemDst = ARMEmitter::SVEMemOperand(AddrReg.X(), VectorIndexLow.Z(), ModType, SVEScale);
+    }
+
+    switch (IROp->ElementSize) {
+    case 1: {
+      ld1b<ARMEmitter::SubRegSize::i8Bit>(TempDst.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 2: {
+      ld1h<ARMEmitter::SubRegSize::i16Bit>(TempDst.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 4: {
+      ld1w<ARMEmitter::SubRegSize::i32Bit>(TempDst.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 8: {
+      ld1d(TempDst.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    default: break;
+    }
+
+    ///< Merge elements based on predicate.
+    sel(SubRegSize, Dst.Z(), CMPPredicate, TempDst.Z(), IncomingDst.Z());
+  } else {
+    LOGMAN_THROW_A_FMT(!Is256Bit, "Can't emulate this gather load in the backend! Programming error!");
+    Emulate128BitGather(IROp->Size, IROp->ElementSize, Dst, IncomingDst, BaseAddr, VectorIndexLow, VectorIndexHigh, MaskReg,
+                        VectorIndexSize, DataElementOffsetStart, IndexElementOffsetStart, OffsetScale);
+  }
+}
+
+DEF_OP(VLoadVectorGatherMaskedQPS) {
+  const auto Op = IROp->C<IR::IROp_VLoadVectorGatherMaskedQPS>();
+
+  /// This instruction behaves similarly to the non-QPS version except for some STRICT limitations
+  /// - Only supports 32-bit element data size!
+  /// - Only supports 64-bit element address size!
+  /// - Only masks elements based on 32-bit element data size! (NOT ADDR SIZE!)
+  /// - Optimally uses SVE's `ld1w {zt.D}` variant instruction!
+  /// - Only outputs a single 128-bit result, while consuming 128-bit or 256-bit of address indexes!
+  /// - Matches VGATHERQPS/VPGATHERQD behaviour!
+  const auto OffsetScale = Op->OffsetScale;
+  const auto Dst = GetVReg(Node);
+  const auto IncomingDst = GetVReg(Op->Incoming.ID());
+
+  const auto MaskReg = GetVReg(Op->MaskReg.ID());
+  std::optional<ARMEmitter::Register> BaseAddr = !Op->AddrBase.IsInvalid() ? std::make_optional(GetReg(Op->AddrBase.ID())) : std::nullopt;
+  const auto VectorIndexLow = GetVReg(Op->VectorIndexLow.ID());
+  std::optional<ARMEmitter::VRegister> VectorIndexHigh =
+    !Op->VectorIndexHigh.IsInvalid() ? std::make_optional(GetVReg(Op->VectorIndexHigh.ID())) : std::nullopt;
+
+  ///< If the host supports SVE and the offset scale matches SVE limitations then it can do an SVE style load.
+  if (HostSupportsSVE128 && (OffsetScale == 1 || OffsetScale == 4)) {
+    ARMEmitter::SVEModType ModType = ARMEmitter::SVEModType::MOD_NONE;
+    if (OffsetScale != 1) {
+      ModType = ARMEmitter::SVEModType::MOD_LSL;
+    }
+
+    const auto CMPPredicate = ARMEmitter::PReg::p0;
+    const auto CMPPredicate2 = ARMEmitter::PReg::p1;
+
+    const auto GoverningPredicate = PRED_TMP_16B;
+
+    // Check if the sign bit is set for the given element size.
+    // This will set the predicate bits for elements [0, 1, 2, 3]
+    // We then use punpklo to extend the low results to be for 64-bit elements.
+    cmplt(ARMEmitter::SubRegSize::i32Bit, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+    punpklo(CMPPredicate2, CMPPredicate);
+    auto TempDst = VTMP1;
+
+    auto GatherExtend = [this](ARMEmitter::VRegister Dst, std::optional<ARMEmitter::Register> BaseAddr, ARMEmitter::VRegister VectorIndex,
+                               ARMEmitter::PRegister CMPPredicate, ARMEmitter::SVEModType ModType, uint8_t OffsetScale) {
+      // No need to load a temporary register in the case that we weren't provided a base address and there is no scaling.
+      uint8_t SVEScale = FEXCore::ilog2(OffsetScale);
+      ARMEmitter::SVEMemOperand MemDst {ARMEmitter::SVEMemOperand(VectorIndex.Z(), 0)};
+      if (BaseAddr.has_value() || OffsetScale != 1) {
+        ARMEmitter::Register AddrReg = TMP1;
+        if (BaseAddr.has_value()) {
+          AddrReg = *BaseAddr;
+        } else {
+          ///< OpcodeDispatcher didn't provide a Base address while SVE requires one.
+          LoadConstant(ARMEmitter::Size::i64Bit, AddrReg, 0);
+        }
+        MemDst = ARMEmitter::SVEMemOperand(AddrReg.X(), VectorIndex.Z(), ModType, SVEScale);
+      }
+
+      ld1w<ARMEmitter::SubRegSize::i64Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemDst);
+    };
+
+    GatherExtend(TempDst, BaseAddr, VectorIndexLow, CMPPredicate2, ModType, OffsetScale);
+
+    if (VectorIndexHigh.has_value()) {
+      punpkhi(CMPPredicate2, CMPPredicate);
+      GatherExtend(VTMP2, BaseAddr, *VectorIndexHigh, CMPPredicate2, ModType, OffsetScale);
+      // Move elements to the lower half.
+      uzp1(ARMEmitter::SubRegSize::i32Bit, TempDst.Q(), TempDst.Q(), VTMP2.Q());
+      ///< Merge elements based on predicate.
+      sel(ARMEmitter::SubRegSize::i32Bit, Dst.Z(), CMPPredicate, TempDst.Z(), IncomingDst.Z());
+    } else {
+      // Move elements to the lower half.
+      xtn(ARMEmitter::SubRegSize::i32Bit, TempDst.Q(), TempDst.Q());
+      ///< Merge elements based on predicate.
+      sel(ARMEmitter::SubRegSize::i32Bit, Dst.Z(), CMPPredicate, TempDst.Z(), IncomingDst.Z());
+    }
+  } else {
+    Emulate128BitGather(16, 4, Dst, IncomingDst, BaseAddr, VectorIndexLow, VectorIndexHigh, MaskReg, 8, 0, 0, OffsetScale);
  }
 }

@@ -1883,5 +2257,73 @@ DEF_OP(Prefetch) {
  prfm(PrefetchType[LUT], MemSrc);
 }

+DEF_OP(VStoreNonTemporal) {
+  const auto Op = IROp->C<IR::IROp_VStoreNonTemporal>();
+  const auto OpSize = IROp->Size;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto Is128Bit = OpSize == Core::CPUState::XMM_SSE_REG_SIZE;
+
+  const auto Value = GetVReg(Op->Value.ID());
+  const auto MemReg = GetReg(Op->Addr.ID());
+  const auto Offset = Op->Offset;
+
+  if (Is256Bit) {
+    LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE256 support in order to use VStoreNonTemporal with 256-bit operation");
+    const auto GoverningPredicate = PRED_TMP_32B.Zeroing();
+    const auto OffsetScaled = Offset / 32;
+    stnt1b(Value.Z(), GoverningPredicate, MemReg, OffsetScaled);
+  } else if (Is128Bit && HostSupportsSVE128) {
+    const auto GoverningPredicate = PRED_TMP_16B.Zeroing();
+    const auto OffsetScaled = Offset / 16;
+    stnt1b(Value.Z(), GoverningPredicate, MemReg, OffsetScaled);
+  } else {
+    // Treat the non-temporal store as a regular vector store in this case for compatibility
+    str(Value.Q(), MemReg, Offset);
+  }
+}
+
+DEF_OP(VStoreNonTemporalPair) {
+  const auto Op = IROp->C<IR::IROp_VStoreNonTemporalPair>();
+  const auto OpSize = IROp->Size;
+
+  [[maybe_unused]] const auto Is128Bit = OpSize == Core::CPUState::XMM_SSE_REG_SIZE;
+  LOGMAN_THROW_A_FMT(Is128Bit, "This IR operation only operates at 128-bit wide");
+
+  const auto ValueLow = GetVReg(Op->ValueLow.ID());
+  const auto ValueHigh = GetVReg(Op->ValueHigh.ID());
+
+  const auto MemReg = GetReg(Op->Addr.ID());
+  const auto Offset = Op->Offset;
+
+  stnp(ValueLow.Q(), ValueHigh.Q(), MemReg, Offset);
+}
+
+DEF_OP(VLoadNonTemporal) {
+  const auto Op = IROp->C<IR::IROp_VLoadNonTemporal>();
+  const auto OpSize = IROp->Size;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto Is128Bit = OpSize == Core::CPUState::XMM_SSE_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto MemReg = GetReg(Op->Addr.ID());
+  const auto Offset = Op->Offset;
+
+  if (Is256Bit) {
+    LOGMAN_THROW_A_FMT(HostSupportsSVE256, "Need SVE256 support in order to use VStoreNonTemporal with 256-bit operation");
+    const auto GoverningPredicate = PRED_TMP_32B.Zeroing();
+    const auto OffsetScaled = Offset / 32;
+    ldnt1b(Dst.Z(), GoverningPredicate, MemReg, OffsetScaled);
+  } else if (Is128Bit && HostSupportsSVE128) {
+    const auto GoverningPredicate = PRED_TMP_16B.Zeroing();
+    const auto OffsetScaled = Offset / 16;
+    ldnt1b(Dst.Z(), GoverningPredicate, MemReg, OffsetScaled);
+  } else {
+    // Treat the non-temporal store as a regular vector store in this case for compatibility
+    ldr(Dst.Q(), MemReg, Offset);
+  }
+}
+
 #undef DEF_OP
 } // namespace FEXCore::CPU
@@ -98,6 +98,7 @@ DEF_OP(GetRoundingMode) {
 DEF_OP(SetRoundingMode) {
  auto Op = IROp->C<IR::IROp_SetRoundingMode>();
  auto Src = GetReg(Op->RoundMode.ID());
+  auto MXCSR = GetReg(Op->MXCSR.ID());

  // As above, setup the rounding flags in [31:30]
  rbit(ARMEmitter::Size::i32Bit, TMP2, Src);
@@ -116,10 +117,48 @@ DEF_OP(SetRoundingMode) {
  lsr(ARMEmitter::Size::i64Bit, TMP2, Src, 2);
  bfi(ARMEmitter::Size::i64Bit, TMP1, TMP2, 24, 1);

+  if (Op->SetDAZ && HostSupportsAFP) {
+    // Extract DAZ from MXCSR and insert to in FPCR.FIZ
+    bfxil(ARMEmitter::Size::i64Bit, TMP1, MXCSR, 6, 1);
+  }
+
  // Now save the new FPCR
  msr(ARMEmitter::SystemRegister::FPCR, TMP1);
 }

+DEF_OP(PushRoundingMode) {
+  auto Op = IROp->C<IR::IROp_PushRoundingMode>();
+  auto Dest = GetReg(Node);
+
+  // Save the old rounding mode
+  mrs(Dest, ARMEmitter::SystemRegister::FPCR);
+
+  // vixl simulator doesn't support anything beyond ties-to-even rounding
+  if (!CTX->Config.DisableVixlIndirectCalls) [[unlikely]] {
+    return;
+  }
+
+  // Insert the rounding flags, reversing the mode bits as above
+  if (Op->RoundMode == 3) {
+    orr(ARMEmitter::Size::i64Bit, TMP1, Dest, 3 << 22);
+  } else if (Op->RoundMode == 0) {
+    and_(ARMEmitter::Size::i64Bit, TMP1, Dest, ~(3 << 22));
+  } else {
+    LOGMAN_THROW_AA_FMT(Op->RoundMode == 1 || Op->RoundMode == 2, "expect a valid round mode");
+
+    and_(ARMEmitter::Size::i64Bit, TMP1, Dest, ~(Op->RoundMode << 22));
+    orr(ARMEmitter::Size::i64Bit, TMP1, TMP1, (Op->RoundMode == 2 ? 1 : 2) << 22);
+  }
+
+  // Now save the new FPCR
+  msr(ARMEmitter::SystemRegister::FPCR, TMP1);
+}
+
+DEF_OP(PopRoundingMode) {
+  auto Op = IROp->C<IR::IROp_PopRoundingMode>();
+  msr(ARMEmitter::SystemRegister::FPCR, GetReg(Op->FPCR.ID()));
+}
+
 DEF_OP(Print) {
  auto Op = IROp->C<IR::IROp_Print>();

@@ -194,7 +233,7 @@ DEF_OP(ProcessorID) {

  // Now that we are done in the syscall we need to carefully peel back the state
  // First unspill the registers from before
-  FillStaticRegs(false, SpillMask);
+  FillStaticRegs(false, SpillMask, ~0U, ARMEmitter::Reg::r8, ARMEmitter::Reg::r2);

  // Now the registers we've spilled are back in their original host registers
  // We can safely claim we are no longer in a syscall
@@ -53,7 +53,7 @@ DEF_OP(Copy) {
 DEF_OP(Swap1) {
  auto Op = IROp->C<IR::IROp_Swap1>();
  auto A = GetReg(Op->A.ID()), B = GetReg(Op->B.ID());
-  LOGMAN_THROW_AA_FMT(B == GetReg(Node), "Invariant");
+  LOGMAN_THROW_A_FMT(B == GetReg(Node), "Invariant");

  mov(ARMEmitter::Size::i64Bit, TMP1, A);
  mov(ARMEmitter::Size::i64Bit, A, B);
@@ -188,13 +188,37 @@ namespace FEXCore::CPU {
    VFScalarOperation(IROp->Size, ElementSize, Op->ZeroUpperBits, ScalarEmit, Dst, Vector1, Vector2);                         \
  }

+#define DEF_FMAOP_SCALAR_INSERT(FEXOp, ARMOp)                                                                                              \
+  DEF_OP(FEXOp) {                                                                                                                          \
+    const auto Op = IROp->C<IR::IROp_##FEXOp>();                                                                                           \
+    const auto ElementSize = Op->Header.ElementSize;                                                                                       \
+                                                                                                                                           \
+    auto ScalarEmit =                                                                                                                      \
+      [this, ElementSize](ARMEmitter::VRegister Dst, ARMEmitter::VRegister Src1, ARMEmitter::VRegister Src2, ARMEmitter::VRegister Src3) { \
+      if (ElementSize == 2) {                                                                                                              \
+        ARMOp(Dst.H(), Src1.H(), Src2.H(), Src3.H());                                                                                      \
+      } else if (ElementSize == 4) {                                                                                                       \
+        ARMOp(Dst.S(), Src1.S(), Src2.S(), Src3.S());                                                                                      \
+      } else if (ElementSize == 8) {                                                                                                       \
+        ARMOp(Dst.D(), Src1.D(), Src2.D(), Src3.D());                                                                                      \
+      }                                                                                                                                    \
+    };                                                                                                                                     \
+                                                                                                                                           \
+    const auto Dst = GetVReg(Node);                                                                                                        \
+    const auto Vector1 = GetVReg(Op->Vector1.ID());                                                                                        \
+    const auto Vector2 = GetVReg(Op->Vector2.ID());                                                                                        \
+    const auto Addend = GetVReg(Op->Addend.ID());                                                                                          \
+                                                                                                                                           \
+    VFScalarFMAOperation(IROp->Size, ElementSize, ScalarEmit, Dst, Vector1, Vector2, Addend);                                              \
+  }
+
 DEF_UNOP(VAbs, abs, true)
 DEF_UNOP(VPopcount, cnt, true)
 DEF_UNOP(VNeg, neg, false)
 DEF_UNOP(VFNeg, fneg, false)

 DEF_BITOP(VAnd, and_)
-DEF_BITOP(VBic, bic)
+DEF_BITOP(VAndn, bic)
 DEF_BITOP(VOr, orr)
 DEF_BITOP(VXor, eor)

@@ -224,16 +248,47 @@ DEF_FBINOP_SCALAR_INSERT(VFSubScalarInsert, fsub)
 DEF_FBINOP_SCALAR_INSERT(VFMulScalarInsert, fmul)
 DEF_FBINOP_SCALAR_INSERT(VFDivScalarInsert, fdiv)

+DEF_FMAOP_SCALAR_INSERT(VFMLAScalarInsert, fmadd)
+DEF_FMAOP_SCALAR_INSERT(VFMLSScalarInsert, fnmsub)
+DEF_FMAOP_SCALAR_INSERT(VFNMLAScalarInsert, fmsub)
+DEF_FMAOP_SCALAR_INSERT(VFNMLSScalarInsert, fnmadd)
+
+void Arm64JITCore::VFScalarFMAOperation(uint8_t OpSize, uint8_t ElementSize, ScalarFMAOpCaller ScalarEmit, ARMEmitter::VRegister Dst,
+                                        ARMEmitter::VRegister Vector1, ARMEmitter::VRegister Vector2, ARMEmitter::VRegister Addend) {
+  LOGMAN_THROW_A_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE, "256-bit unsupported", __func__);
+
+  LOGMAN_THROW_AA_FMT(ElementSize == 2 || ElementSize == 4 || ElementSize == 8, "Invalid size");
+  const auto SubRegSize = ARMEmitter::ToVectorSizePair(ElementSize == 2 ? ARMEmitter::SubRegSize::i16Bit :
+                                                       ElementSize == 4 ? ARMEmitter::SubRegSize::i32Bit :
+                                                                          ARMEmitter::SubRegSize::i64Bit);
+  if (Dst != Vector1 && Dst != Vector2 && Dst != Addend && HostSupportsAFP) {
+    // If destination doesnt overlap any incoming register then move the adder to the destination first.
+    mov(Dst.Q(), Addend.Q());
+    Dst = Addend;
+  }
+
+  if (HostSupportsAFP && Dst == Addend) {
+    ///< Exactly matches ARM scalar FMA semantics
+    // If the host CPU supports AFP then scalar does an insert without modifying upper bits.
+    ScalarEmit(Dst, Vector1, Vector2, Addend);
+  } else {
+    // No overlap between addr and destination or host doesn't support AFP, need to emit in to a temporary then insert.
+    ScalarEmit(VTMP1, Vector1, Vector2, Addend);
+    ins(SubRegSize.Vector, Dst.Q(), 0, VTMP1.Q(), 0);
+  }
+}
+
+// VFScalarOperation performs the operation described through ScalarEmit between Vector1 and Vector2,
+// storing it into Dst. This is a scalar operation, so the only lowest element of each vector is used for the operation.
+// The result is stored into the destination. The untouched bits of the destination come from Vector1, unless it's a 256 vector
+// and ZeroUpperBits is true, in which case the upper bits are zero.
 void Arm64JITCore::VFScalarOperation(uint8_t OpSize, uint8_t ElementSize, bool ZeroUpperBits, ScalarBinaryOpCaller ScalarEmit,
                                     ARMEmitter::VRegister Dst, ARMEmitter::VRegister Vector1, ARMEmitter::VRegister Vector2) {
  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
-  if (!Is256Bit) {
-    LOGMAN_THROW_A_FMT(ZeroUpperBits == false, "128-bit operation doesn't support ZeroUpperBits in {}", __func__);
-  }
+  LOGMAN_THROW_A_FMT(Is256Bit || !ZeroUpperBits, "128-bit operation doesn't support ZeroUpperBits in {}", __func__);

  // Bit of a tricky detail.
-  // The upper bits of the destination comes from the first source.
-
+  // The upper bits of the destination comes from Vector1.
  LOGMAN_THROW_AA_FMT(ElementSize == 2 || ElementSize == 4 || ElementSize == 8, "Invalid size");
  const auto SubRegSize = ARMEmitter::ToVectorSizePair(ElementSize == 2 ? ARMEmitter::SubRegSize::i16Bit :
                                                       ElementSize == 4 ? ARMEmitter::SubRegSize::i32Bit :
@@ -261,8 +316,8 @@ void Arm64JITCore::VFScalarOperation(uint8_t OpSize, uint8_t ElementSize, bool Z
        ins(SubRegSize.Vector, Dst.Q(), 0, VTMP1.Q(), 0);
      }
    }
-  } else if (Dst != Vector2) {
-    if (!ZeroUpperBits && Is256Bit) {
+  } else if (Dst != Vector2) { // Dst different from both Vector1 and Vector2
+    if (Is256Bit && !ZeroUpperBits) {
      mov(Dst.Z(), Vector1.Z());
    } else {
      mov(Dst.Q(), Vector1.Q());
@@ -279,36 +334,30 @@ void Arm64JITCore::VFScalarOperation(uint8_t OpSize, uint8_t ElementSize, bool Z
        ins(SubRegSize.Vector, Dst.Q(), 0, VTMP1.Q(), 0);
      }
    }
-  } else {
-    // Destination intersects Vector2, can't do anything optimal in this case.
-    // Do the scalar operation first and then move and insert.
+  } else { // Dst same as Vector2
+
    ScalarEmit(VTMP1, Vector1, Vector2);

    if (!ZeroUpperBits && Is256Bit) {
      mov(Dst.Z(), Vector1.Z());
-    } else {
-      mov(Dst.Q(), Vector1.Q());
-    }
-
-    if (!ZeroUpperBits && Is256Bit) {
      ptrue(SubRegSize.Vector, Predicate, ARMEmitter::PredicatePattern::SVE_VL1);
      mov(SubRegSize.Vector, Dst.Z(), Predicate.Merging(), VTMP1.Z());
    } else {
+      mov(Dst.Q(), Vector1.Q());
      ins(SubRegSize.Vector, Dst.Q(), 0, VTMP1.Q(), 0);
    }
  }
 }

+// Similarly to VFScalarOperation it performs the operation described through ScalarEmit operating on Vector2.
+// However the result of the scalar operation is inserted into Vector1 and moved to Destination.
+// The untouched bits of the destination come from Vector1, unless it's a 256 vector
+// and ZeroUpperBits is true, in which case the upper bits are zero.
 void Arm64JITCore::VFScalarUnaryOperation(uint8_t OpSize, uint8_t ElementSize, bool ZeroUpperBits, ScalarUnaryOpCaller ScalarEmit,
                                          ARMEmitter::VRegister Dst, ARMEmitter::VRegister Vector1,
                                          std::variant<ARMEmitter::VRegister, ARMEmitter::Register> Vector2) {
  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
-  if (!Is256Bit) {
-    LOGMAN_THROW_A_FMT(ZeroUpperBits == false, "128-bit operation doesn't support ZeroUpperBits in {}", __func__);
-  }
-
-  // Bit of a tricky detail.
-  // The upper bits of the destination comes from the first source.
+  LOGMAN_THROW_A_FMT(Is256Bit || !ZeroUpperBits, "128-bit operation doesn't support ZeroUpperBits in {}", __func__);

  LOGMAN_THROW_AA_FMT(ElementSize == 2 || ElementSize == 4 || ElementSize == 8, "Invalid size");
  const auto SubRegSize = ARMEmitter::ToVectorSizePair(ElementSize == 2 ? ARMEmitter::SubRegSize::i16Bit :
@@ -327,7 +376,7 @@ void Arm64JITCore::VFScalarUnaryOperation(uint8_t OpSize, uint8_t ElementSize, b
      mov(Dst.Q(), Vector1.Q());
    }

-    if (HostSupportsAFP) {
+    if (HostSupportsAFP) { // or Dst (here Dst == Vector1)
      // If the host CPU supports AFP then scalar does an insert without modifying upper bits.
      ScalarEmit(Dst, Vector2);
    } else {
@@ -366,14 +415,10 @@ void Arm64JITCore::VFScalarUnaryOperation(uint8_t OpSize, uint8_t ElementSize, b

    if (!ZeroUpperBits && Is256Bit) {
      mov(Dst.Z(), Vector1.Z());
-    } else {
-      mov(Dst.Q(), Vector1.Q());
-    }
-
-    if (!ZeroUpperBits && Is256Bit) {
      ptrue(SubRegSize.Vector, Predicate, ARMEmitter::PredicatePattern::SVE_VL1);
      mov(SubRegSize.Vector, Dst.Z(), Predicate.Merging(), VTMP1.Z());
    } else {
+      mov(Dst.Q(), Vector1.Q());
      ins(SubRegSize.Vector, Dst.Q(), 0, VTMP1.Q(), 0);
    }
  }
@@ -457,12 +502,17 @@ DEF_OP(VFRSqrtScalarInsert) {

    fmov(SubRegSize.Scalar, VTMP1.Q(), 1.0f);
    fsqrt(SubRegSize.Scalar, VTMP2, Src);
-    fdiv(SubRegSize.Scalar, Dst, VTMP1, VTMP2);
+    if (HostSupportsAFP) {
+      fdiv(SubRegSize.Scalar, VTMP1, VTMP1, VTMP2);
+      ins(SubRegSize.Vector, Dst, 0, VTMP1, 0);
+    } else {
+      fdiv(SubRegSize.Scalar, Dst, VTMP1, VTMP2);
+    }
  };

  auto ScalarEmitRPRES = [this, SubRegSize](ARMEmitter::VRegister Dst, std::variant<ARMEmitter::VRegister, ARMEmitter::Register> SrcVar) {
    auto Src = *std::get_if<ARMEmitter::VRegister>(&SrcVar);
-    frsqrte(SubRegSize.Scalar, Dst.S(), Src.S());
+    frsqrte(SubRegSize.Scalar, Dst.D(), Src.D());
  };

  std::array<ScalarUnaryOpCaller, 2> Handlers = {
@@ -590,7 +640,28 @@ DEF_OP(VSToFVectorInsert) {
  // Claim the element size is 8-bytes.
  // Might be scalar 8-byte (cvtsi2ss xmm0, rax)
  // Might be vector i32v2 (cvtpi2ps xmm0, mm0)
-  VFScalarUnaryOperation(IROp->Size, ElementSize * (HasTwoElements ? 2 : 1), Op->ZeroUpperBits, ScalarEmit, Dst, Vector1, Vector2);
+  if (!HasTwoElements) {
+    VFScalarUnaryOperation(IROp->Size, ElementSize, Op->ZeroUpperBits, ScalarEmit, Dst, Vector1, Vector2);
+    return;
+  }
+
+  // Dealing with the odd case of this being actually a vector operation rather than scalar.
+  const auto Is256Bit = IROp->Size == Core::CPUState::XMM_AVX_REG_SIZE;
+  constexpr auto Predicate = ARMEmitter::PReg::p0;
+
+  ScalarEmit(VTMP1, Vector2);
+  if (!Op->ZeroUpperBits && Is256Bit) {
+    if (Dst != Vector1) {
+      mov(Dst.Z(), Vector1.Z());
+    }
+    ptrue(ARMEmitter::SubRegSize::i64Bit, Predicate, ARMEmitter::PredicatePattern::SVE_VL1);
+    mov(ARMEmitter::SubRegSize::i64Bit, Dst.Z(), Predicate.Merging(), VTMP1.Z());
+  } else {
+    if (Dst != Vector1) {
+      mov(Dst.Q(), Vector1.Q());
+    }
+    ins(ARMEmitter::SubRegSize::i64Bit, Dst.Q(), 0, VTMP1.Q(), 0);
+  }
 }

 DEF_OP(VSToFGPRInsert) {
@@ -679,11 +750,11 @@ DEF_OP(VFCMPScalarInsert) {
  auto ScalarEmitEQ = [this, SubRegSize](ARMEmitter::VRegister Dst, ARMEmitter::VRegister Src1, ARMEmitter::VRegister Src2) {
    switch (SubRegSize.Scalar) {
    case ARMEmitter::ScalarRegSize::i16Bit: {
-      fcmeq(Dst.H(), Src1.H(), Src2.H());
+      fcmeq(Dst.H(), Src2.H(), Src1.H());
      break;
    }
    case ARMEmitter::ScalarRegSize::i32Bit:
-    case ARMEmitter::ScalarRegSize::i64Bit: fcmeq(SubRegSize.Scalar, Dst, Src1, Src2); break;
+    case ARMEmitter::ScalarRegSize::i64Bit: fcmeq(SubRegSize.Scalar, Dst, Src2, Src1); break;
    default: break;
    }
  };
@@ -748,11 +819,11 @@ DEF_OP(VFCMPScalarInsert) {
    [this, SubRegSize, ZeroUpperBits, Is256Bit](ARMEmitter::VRegister Dst, ARMEmitter::VRegister Src1, ARMEmitter::VRegister Src2) {
    switch (SubRegSize.Scalar) {
    case ARMEmitter::ScalarRegSize::i16Bit: {
-      fcmeq(VTMP1.H(), Src1.H(), Src2.H());
+      fcmeq(VTMP1.H(), Src2.H(), Src1.H());
      break;
    }
    case ARMEmitter::ScalarRegSize::i32Bit:
-    case ARMEmitter::ScalarRegSize::i64Bit: fcmeq(SubRegSize.Scalar, VTMP1, Src1, Src2); break;
+    case ARMEmitter::ScalarRegSize::i64Bit: fcmeq(SubRegSize.Scalar, VTMP1, Src2, Src1); break;
    default: break;
    }
    // If the destination is a temporary then it is going to do an insert after the operation.
@@ -1750,6 +1821,7 @@ DEF_OP(VBSL) {
  const auto Op = IROp->C<IR::IROp_VBSL>();
  const auto OpSize = IROp->Size;
  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto Is128Bit = OpSize == Core::CPUState::XMM_SSE_REG_SIZE;

  const auto Dst = GetVReg(Node);
  const auto VectorFalse = GetVReg(Op->VectorFalse.ID());
@@ -1770,6 +1842,11 @@ DEF_OP(VBSL) {
      bsl(VTMP1.Z(), VTMP1.Z(), VectorFalse.Z(), VectorMask.Z());
      mov(Dst.Z(), VTMP1.Z());
    }
+  } else if (!HostSupportsSVE256 && HostSupportsSVE128 && Is128Bit && Dst != VectorFalse && Dst != VectorTrue && Dst != VectorMask) {
+    // Needs to move but SVE movprfx+bsl is slightly more efficient than ASIMD mov+bsl on CPUs that support
+    // movprfx fusion and NOT zero-cycle vector register moves.
+    movprfx(Dst.Z(), VectorTrue.Z());
+    bsl(Dst.Z(), Dst.Z(), VectorFalse.Z(), VectorMask.Z());
  } else {
    if (VectorMask == Dst) {
      // Can use BSL without any moves.
@@ -3141,6 +3218,48 @@ DEF_OP(VSXTL2) {
  }
 }

+DEF_OP(VSSHLL) {
+  const auto Op = IROp->C<IR::IROp_VSSHLL>();
+  const auto OpSize = IROp->Size;
+
+  const auto SubRegSize = ConvertSubRegSize248(IROp);
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector = GetVReg(Op->Vector.ID());
+  const auto BitShift = Op->BitShift;
+  LOGMAN_THROW_A_FMT(BitShift < ((IROp->ElementSize >> 1) * 8), "Bitshift size too large for source element size: {} < {}", BitShift,
+                     (IROp->ElementSize >> 1) * 8);
+
+  if (Is256Bit) {
+    sunpklo(SubRegSize, Dst.Z(), Vector.Z());
+    lsl(SubRegSize, Dst.Z(), Dst.Z(), BitShift);
+  } else {
+    sshll(SubRegSize, Dst.D(), Vector.D(), BitShift);
+  }
+}
+
+DEF_OP(VSSHLL2) {
+  const auto Op = IROp->C<IR::IROp_VSSHLL2>();
+  const auto OpSize = IROp->Size;
+
+  const auto SubRegSize = ConvertSubRegSize248(IROp);
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector = GetVReg(Op->Vector.ID());
+  const auto BitShift = Op->BitShift;
+  LOGMAN_THROW_A_FMT(BitShift < ((IROp->ElementSize >> 1) * 8), "Bitshift size too large for source element size: {} < {}", BitShift,
+                     (IROp->ElementSize >> 1) * 8);
+
+  if (Is256Bit) {
+    sunpkhi(SubRegSize, Dst.Z(), Vector.Z());
+    lsl(SubRegSize, Dst.Z(), Dst.Z(), BitShift);
+  } else {
+    sshll2(SubRegSize, Dst.Q(), Vector.Q(), BitShift);
+  }
+}
+
 DEF_OP(VUXTL) {
  const auto Op = IROp->C<IR::IROp_VUXTL>();
  const auto OpSize = IROp->Size;
@@ -3960,5 +4079,317 @@ DEF_OP(VFCADD) {
  }
 }

+DEF_OP(VFMLA) {
+  ///< Dest = (Vector1 * Vector2) + Addend
+  // Matches:
+  // - SVE    - FMLA
+  // - ASIMD  - FMLA
+  // - Scalar - FMADD
+  const auto Op = IROp->C<IR::IROp_VFMLA>();
+  const auto OpSize = IROp->Size;
+
+  const auto SubRegSize = ConvertSubRegSize248(IROp);
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector1 = GetVReg(Op->Vector1.ID());
+  const auto Vector2 = GetVReg(Op->Vector2.ID());
+  const auto VectorAddend = GetVReg(Op->Addend.ID());
+
+  if (HostSupportsSVE256 && Is256Bit) {
+    const auto Mask = PRED_TMP_32B.Merging();
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Z(), VectorAddend.Z());
+    }
+
+    fmla(SubRegSize, DestTmp.Z(), Mask, Vector1.Z(), Vector2.Z());
+    if (Dst != DestTmp) {
+      mov(Dst.Z(), DestTmp.Z());
+    }
+  } else {
+    if (IROp->ElementSize == OpSize) {
+      if (IROp->ElementSize == 2) {
+        fmadd(Dst.H(), Vector1.H(), Vector2.H(), VectorAddend.H());
+      } else if (IROp->ElementSize == 4) {
+        fmadd(Dst.S(), Vector1.S(), Vector2.S(), VectorAddend.S());
+      } else if (IROp->ElementSize == 8) {
+        fmadd(Dst.D(), Vector1.D(), Vector2.D(), VectorAddend.D());
+      }
+      return;
+    }
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Q(), VectorAddend.Q());
+    }
+    if (OpSize == 16) {
+      fmla(SubRegSize, DestTmp.Q(), Vector1.Q(), Vector2.Q());
+    } else {
+      fmla(SubRegSize, DestTmp.D(), Vector1.D(), Vector2.D());
+    }
+
+    if (Dst != DestTmp) {
+      mov(Dst.Q(), DestTmp.Q());
+    }
+  }
+}
+
+DEF_OP(VFMLS) {
+  ///< Dest = (Vector1 * Vector2) - Addend
+  // Matches:
+  // - SVE    - FNMLS
+  // - ASIMD  - FMLA (With negated addend)
+  // - Scalar - FNMSUB
+  const auto Op = IROp->C<IR::IROp_VFMLS>();
+  const auto OpSize = IROp->Size;
+
+  const auto SubRegSize = ConvertSubRegSize248(IROp);
+  const auto Is128Bit = OpSize == Core::CPUState::XMM_SSE_REG_SIZE;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector1 = GetVReg(Op->Vector1.ID());
+  const auto Vector2 = GetVReg(Op->Vector2.ID());
+  const auto VectorAddend = GetVReg(Op->Addend.ID());
+
+  if (HostSupportsSVE256 && Is256Bit) {
+    const auto Mask = PRED_TMP_32B.Merging();
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Z(), VectorAddend.Z());
+    }
+
+    fnmls(SubRegSize, DestTmp.Z(), Mask, Vector1.Z(), Vector2.Z());
+    if (Dst != DestTmp) {
+      mov(Dst.Z(), DestTmp.Z());
+    }
+  } else if (HostSupportsSVE128 && Is128Bit) {
+    const auto Mask = PRED_TMP_16B.Merging();
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Z(), VectorAddend.Z());
+    }
+
+    fnmls(SubRegSize, DestTmp.Z(), Mask, Vector1.Z(), Vector2.Z());
+    if (Dst != DestTmp) {
+      mov(Dst.Z(), DestTmp.Z());
+    }
+  } else {
+    if (IROp->ElementSize == OpSize) {
+      if (IROp->ElementSize == 2) {
+        fnmsub(Dst.H(), Vector1.H(), Vector2.H(), VectorAddend.H());
+      } else if (IROp->ElementSize == 4) {
+        fnmsub(Dst.S(), Vector1.S(), Vector2.S(), VectorAddend.S());
+      } else if (IROp->ElementSize == 8) {
+        fnmsub(Dst.D(), Vector1.D(), Vector2.D(), VectorAddend.D());
+      }
+      return;
+    }
+
+    // Addend needs to get negated to match correct behaviour here.
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst == Vector1 || Dst == Vector2) {
+      DestTmp = VTMP1;
+    }
+
+    if (Is128Bit) {
+      fneg(SubRegSize, DestTmp.Q(), VectorAddend.Q());
+    } else {
+      fneg(SubRegSize, DestTmp.D(), VectorAddend.D());
+    }
+
+    if (Is128Bit) {
+      fmla(SubRegSize, DestTmp.Q(), Vector1.Q(), Vector2.Q());
+    } else {
+      fmla(SubRegSize, DestTmp.D(), Vector1.D(), Vector2.D());
+    }
+
+    if (DestTmp != Dst) {
+      if (Is128Bit) {
+        mov(Dst.Q(), DestTmp.Q());
+      } else {
+        mov(Dst.D(), DestTmp.D());
+      }
+    }
+  }
+}
+
+DEF_OP(VFNMLA) {
+  ///< Dest = (-Vector1 * Vector2) + Addend
+  // Matches:
+  // - SVE    - FMLS
+  // - ASIMD  - FMLS
+  // - Scalar - FMSUB
+  const auto Op = IROp->C<IR::IROp_VFMLA>();
+  const auto OpSize = IROp->Size;
+
+  const auto SubRegSize = ConvertSubRegSize248(IROp);
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector1 = GetVReg(Op->Vector1.ID());
+  const auto Vector2 = GetVReg(Op->Vector2.ID());
+  const auto VectorAddend = GetVReg(Op->Addend.ID());
+
+  if (HostSupportsSVE256 && Is256Bit) {
+    const auto Mask = PRED_TMP_32B.Merging();
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Z(), VectorAddend.Z());
+    }
+
+    fmls(SubRegSize, DestTmp.Z(), Mask, Vector1.Z(), Vector2.Z());
+    if (Dst != DestTmp) {
+      mov(Dst.Z(), DestTmp.Z());
+    }
+  } else {
+    if (IROp->ElementSize == OpSize) {
+      if (IROp->ElementSize == 2) {
+        fmsub(Dst.H(), Vector1.H(), Vector2.H(), VectorAddend.H());
+      } else if (IROp->ElementSize == 4) {
+        fmsub(Dst.S(), Vector1.S(), Vector2.S(), VectorAddend.S());
+      } else if (IROp->ElementSize == 8) {
+        fmsub(Dst.D(), Vector1.D(), Vector2.D(), VectorAddend.D());
+      }
+      return;
+    }
+
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Q(), VectorAddend.Q());
+    }
+    if (OpSize == 16) {
+      fmls(SubRegSize, DestTmp.Q(), Vector1.Q(), Vector2.Q());
+    } else {
+      fmls(SubRegSize, DestTmp.D(), Vector1.D(), Vector2.D());
+    }
+
+    if (Dst != DestTmp) {
+      mov(Dst.Q(), DestTmp.Q());
+    }
+  }
+}
+
+DEF_OP(VFNMLS) {
+  ///< Dest = (-Vector1 * Vector2) - Addend
+  // Matches:
+  // - SVE    - FNMLA
+  // - ASIMD  - FMLS (With Negated addend)
+  // - Scalar - FNMADD
+
+  const auto Op = IROp->C<IR::IROp_VFMLS>();
+  const auto OpSize = IROp->Size;
+
+  const auto SubRegSize = ConvertSubRegSize248(IROp);
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto Is128Bit = OpSize == Core::CPUState::XMM_SSE_REG_SIZE;
+
+  const auto Dst = GetVReg(Node);
+  const auto Vector1 = GetVReg(Op->Vector1.ID());
+  const auto Vector2 = GetVReg(Op->Vector2.ID());
+  const auto VectorAddend = GetVReg(Op->Addend.ID());
+
+  if (HostSupportsSVE256 && Is256Bit) {
+    const auto Mask = PRED_TMP_32B.Merging();
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Z(), VectorAddend.Z());
+    }
+
+    fnmla(SubRegSize, DestTmp.Z(), Mask, Vector1.Z(), Vector2.Z());
+    if (Dst != DestTmp) {
+      mov(Dst.Z(), DestTmp.Z());
+    }
+  } else if (HostSupportsSVE128 && Is128Bit) {
+    const auto Mask = PRED_TMP_16B.Merging();
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst != VectorAddend) {
+      if (Dst != Vector1 && Dst != Vector2) {
+        DestTmp = Dst;
+      } else {
+        DestTmp = VTMP1;
+      }
+      mov(DestTmp.Z(), VectorAddend.Z());
+    }
+
+    fnmla(SubRegSize, DestTmp.Z(), Mask, Vector1.Z(), Vector2.Z());
+    if (Dst != DestTmp) {
+      mov(Dst.Z(), DestTmp.Z());
+    }
+  } else {
+    if (IROp->ElementSize == OpSize) {
+      if (IROp->ElementSize == 2) {
+        fnmadd(Dst.H(), Vector1.H(), Vector2.H(), VectorAddend.H());
+      } else if (IROp->ElementSize == 4) {
+        fnmadd(Dst.S(), Vector1.S(), Vector2.S(), VectorAddend.S());
+      } else if (IROp->ElementSize == 8) {
+        fnmadd(Dst.D(), Vector1.D(), Vector2.D(), VectorAddend.D());
+      }
+      return;
+    }
+
+    // Addend needs to get negated to match correct behaviour here.
+    ARMEmitter::VRegister DestTmp = Dst;
+    if (Dst == Vector1 || Dst == Vector2) {
+      DestTmp = VTMP1;
+    }
+
+    if (Is128Bit) {
+      fneg(SubRegSize, DestTmp.Q(), VectorAddend.Q());
+    } else {
+      fneg(SubRegSize, DestTmp.D(), VectorAddend.D());
+    }
+
+    if (Is128Bit) {
+      fmls(SubRegSize, DestTmp.Q(), Vector1.Q(), Vector2.Q());
+    } else {
+      fmls(SubRegSize, DestTmp.D(), Vector1.D(), Vector2.D());
+    }
+
+    if (DestTmp != Dst) {
+      if (Is128Bit) {
+        mov(Dst.Q(), DestTmp.Q());
+      } else {
+        mov(Dst.D(), DestTmp.D());
+      }
+    }
+  }
+}
+
 #undef DEF_OP
 } // namespace FEXCore::CPU
@@ -17,6 +17,5 @@ class CPUBackend;

 [[nodiscard]]
 fextl::unique_ptr<CPUBackend> CreateArm64JITCore(FEXCore::Context::ContextImpl* ctx, FEXCore::Core::InternalThreadState* Thread);
-CPUBackendFeatures GetArm64JITBackendFeatures();

 } // namespace FEXCore::CPU
@@ -13,9 +13,6 @@
 #include <stddef.h>
 #include <utility>
 #include <mutex>
-#ifdef _M_ARM_64EC
-#include <winnt.h>
-#endif

 namespace FEXCore {

@@ -70,24 +67,6 @@ public:
    return 0;
  }

-#ifdef _M_ARM_64EC
-  bool CheckPageEC(uint64_t Address) {
-    if (!RtlIsEcCode(Address)) {
-      return false;
-    }
-
-    std::lock_guard<std::recursive_mutex> lk(WriteLock);
-
-    // Mark L2 entry for this page as EC by setting the LSB, this can then be
-    // checked by the dispatcher to see if it needs to perform a call/return to
-    // EC code.
-    const auto PageIndex = (Address & (VirtualMemSize - 1)) >> 12;
-    const auto Pointers = reinterpret_cast<uintptr_t*>(PagePointer);
-    Pointers[PageIndex] |= 1;
-    return true;
-  }
-#endif
-
  fextl::map<uint64_t, fextl::vector<uint64_t>> CodePages;

  // Appends Block {Address} to CodePages [Start, Start + Length)
@@ -65,7 +65,7 @@ void OpDispatchBuilder::SHA1MSG2Op(OpcodeArgs) {
  // This instruction mostly matches ARMv8's SHA1SU1 instruction but one of the elements are flipped in an unexpected way.
  // Do all the work without it.

-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(OpSize::i32Bit, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
+  const auto ZeroRegister = LoadZeroVector(OpSize::i32Bit);

  // Shift the incoming source left by a 32-bit element, inserting Zeros.
  // This could be slightly improved to use a VInsGPR with the zero register.
@@ -90,8 +90,6 @@ void OpDispatchBuilder::SHA1MSG2Op(OpcodeArgs) {
 }

 void OpDispatchBuilder::SHA1RNDS4Op(OpcodeArgs) {
-  LOGMAN_THROW_A_FMT(Op->Src[1].IsLiteral(), "Src1 needs to be literal here to indicate function and constants");
-
  using FnType = Ref (*)(OpDispatchBuilder&, Ref, Ref, Ref);

  const auto f0 = [](OpDispatchBuilder& Self, Ref B, Ref C, Ref D) -> Ref {
@@ -121,7 +119,7 @@ void OpDispatchBuilder::SHA1RNDS4Op(OpcodeArgs) {
    f3,
  };

-  const uint64_t Imm8 = Op->Src[1].Data.Literal.Value & 0b11;
+  const uint64_t Imm8 = Op->Src[1].Literal() & 0b11;
  const FnType Fn = fn_array[Imm8];
  auto K = _Constant(32, k_array[Imm8]);

@@ -312,8 +310,7 @@ void OpDispatchBuilder::AESImcOp(OpcodeArgs) {
 void OpDispatchBuilder::AESEncOp(OpcodeArgs) {
  Ref Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags);
  Ref Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(16, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESEnc(16, Dest, Src, ZeroRegister);
+  Ref Result = _VAESEnc(16, Dest, Src, LoadZeroVector(16));
  StoreResult(FPRClass, Op, Result, -1);
 }

@@ -326,8 +323,7 @@ void OpDispatchBuilder::VAESEncOp(OpcodeArgs) {

  Ref State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
  Ref Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(DstSize, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESEnc(DstSize, State, Key, ZeroRegister);
+  Ref Result = _VAESEnc(DstSize, State, Key, LoadZeroVector(DstSize));

  StoreResult(FPRClass, Op, Result, -1);
 }
@@ -335,8 +331,7 @@ void OpDispatchBuilder::VAESEncOp(OpcodeArgs) {
 void OpDispatchBuilder::AESEncLastOp(OpcodeArgs) {
  Ref Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags);
  Ref Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(16, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESEncLast(16, Dest, Src, ZeroRegister);
+  Ref Result = _VAESEncLast(16, Dest, Src, LoadZeroVector(16));
  StoreResult(FPRClass, Op, Result, -1);
 }

@@ -349,8 +344,7 @@ void OpDispatchBuilder::VAESEncLastOp(OpcodeArgs) {

  Ref State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
  Ref Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(DstSize, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESEncLast(DstSize, State, Key, ZeroRegister);
+  Ref Result = _VAESEncLast(DstSize, State, Key, LoadZeroVector(DstSize));

  StoreResult(FPRClass, Op, Result, -1);
 }
@@ -358,8 +352,7 @@ void OpDispatchBuilder::VAESEncLastOp(OpcodeArgs) {
 void OpDispatchBuilder::AESDecOp(OpcodeArgs) {
  Ref Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags);
  Ref Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(16, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESDec(16, Dest, Src, ZeroRegister);
+  Ref Result = _VAESDec(16, Dest, Src, LoadZeroVector(16));
  StoreResult(FPRClass, Op, Result, -1);
 }

@@ -372,8 +365,7 @@ void OpDispatchBuilder::VAESDecOp(OpcodeArgs) {

  Ref State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
  Ref Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(DstSize, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESDec(DstSize, State, Key, ZeroRegister);
+  Ref Result = _VAESDec(DstSize, State, Key, LoadZeroVector(DstSize));

  StoreResult(FPRClass, Op, Result, -1);
 }
@@ -381,8 +373,7 @@ void OpDispatchBuilder::VAESDecOp(OpcodeArgs) {
 void OpDispatchBuilder::AESDecLastOp(OpcodeArgs) {
  Ref Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags);
  Ref Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(16, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESDecLast(16, Dest, Src, ZeroRegister);
+  Ref Result = _VAESDecLast(16, Dest, Src, LoadZeroVector(16));
  StoreResult(FPRClass, Op, Result, -1);
 }

@@ -395,20 +386,17 @@ void OpDispatchBuilder::VAESDecLastOp(OpcodeArgs) {

  Ref State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
  Ref Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(DstSize, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  Ref Result = _VAESDecLast(DstSize, State, Key, ZeroRegister);
+  Ref Result = _VAESDecLast(DstSize, State, Key, LoadZeroVector(DstSize));

  StoreResult(FPRClass, Op, Result, -1);
 }

 Ref OpDispatchBuilder::AESKeyGenAssistImpl(OpcodeArgs) {
  Ref Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
-  LOGMAN_THROW_A_FMT(Op->Src[1].IsLiteral(), "Src1 needs to be literal here");
-  const uint64_t RCON = Op->Src[1].Data.Literal.Value;
+  const uint64_t RCON = Op->Src[1].Literal();

  auto KeyGenSwizzle = LoadAndCacheNamedVectorConstant(16, NAMED_VECTOR_AESKEYGENASSIST_SWIZZLE);
-  const auto ZeroRegister = LoadAndCacheNamedVectorConstant(16, FEXCore::IR::NamedVectorConstant::NAMED_VECTOR_ZERO);
-  return _VAESKeyGenAssist(Src, KeyGenSwizzle, ZeroRegister, RCON);
+  return _VAESKeyGenAssist(Src, KeyGenSwizzle, LoadZeroVector(16), RCON);
 }

 void OpDispatchBuilder::AESKeyGenAssist(OpcodeArgs) {
@@ -417,26 +405,22 @@ void OpDispatchBuilder::AESKeyGenAssist(OpcodeArgs) {
 }

 void OpDispatchBuilder::PCLMULQDQOp(OpcodeArgs) {
-  LOGMAN_THROW_A_FMT(Op->Src[1].IsLiteral(), "Selector needs to be literal here");
-
  Ref Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags);
  Ref Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
-  const auto Selector = static_cast<uint8_t>(Op->Src[1].Data.Literal.Value);
+  const auto Selector = static_cast<uint8_t>(Op->Src[1].Literal());

-  auto Res = _PCLMUL(16, Dest, Src, Selector);
+  auto Res = _PCLMUL(16, Dest, Src, Selector & 0b1'0001);
  StoreResult(FPRClass, Op, Res, -1);
 }

 void OpDispatchBuilder::VPCLMULQDQOp(OpcodeArgs) {
-  LOGMAN_THROW_A_FMT(Op->Src[2].IsLiteral(), "Selector needs to be literal here");
-
  const auto DstSize = GetDstSize(Op);

  Ref Src1 = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags);
  Ref Src2 = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags);
-  const auto Selector = static_cast<uint8_t>(Op->Src[2].Data.Literal.Value);
+  const auto Selector = static_cast<uint8_t>(Op->Src[2].Literal());

-  Ref Res = _PCLMUL(DstSize, Src1, Src2, Selector);
+  Ref Res = _PCLMUL(DstSize, Src1, Src2, Selector & 0b1'0001);
  StoreResult(FPRClass, Op, Res, -1);
 }

@@ -258,68 +258,7 @@ void OpDispatchBuilder::CalculateAF(Ref Src1, Ref Src2) {
  SetRFLAG<FEXCore::X86State::RFLAG_AF_RAW_LOC>(XorRes);
 }

-void OpDispatchBuilder::CalculateDeferredFlags(uint32_t FlagsToCalculateMask) {
-  if (CurrentDeferredFlags.Type == FlagsGenerationType::TYPE_NONE) {
-    // Nothing to do
-    if (NZCVDirty && CachedNZCV) {
-      _StoreNZCV(CachedNZCV);
-    }
-
-    CachedNZCV = nullptr;
-    NZCVDirty = false;
-    return;
-  }
-
-  switch (CurrentDeferredFlags.Type) {
-  case FlagsGenerationType::TYPE_SUB:
-    CalculateFlags_SUB(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Sources.TwoSrcImmediate.Src1,
-                       CurrentDeferredFlags.Sources.TwoSrcImmediate.Src2, CurrentDeferredFlags.Sources.TwoSrcImmediate.UpdateCF);
-    break;
-  case FlagsGenerationType::TYPE_MUL:
-    CalculateFlags_MUL(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res, CurrentDeferredFlags.Sources.OneSource.Src1);
-    break;
-  case FlagsGenerationType::TYPE_UMUL: CalculateFlags_UMUL(CurrentDeferredFlags.Res); break;
-  case FlagsGenerationType::TYPE_LOGICAL:
-    CalculateFlags_Logical(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res, CurrentDeferredFlags.Sources.TwoSource.Src1,
-                           CurrentDeferredFlags.Sources.TwoSource.Src2);
-    break;
-  case FlagsGenerationType::TYPE_LSHLI:
-    CalculateFlags_ShiftLeftImmediate(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res,
-                                      CurrentDeferredFlags.Sources.OneSrcImmediate.Src1, CurrentDeferredFlags.Sources.OneSrcImmediate.Imm);
-    break;
-  case FlagsGenerationType::TYPE_LSHRI:
-    CalculateFlags_ShiftRightImmediate(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res,
-                                       CurrentDeferredFlags.Sources.OneSrcImmediate.Src1, CurrentDeferredFlags.Sources.OneSrcImmediate.Imm);
-    break;
-  case FlagsGenerationType::TYPE_LSHRDI:
-    CalculateFlags_ShiftRightDoubleImmediate(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res,
-                                             CurrentDeferredFlags.Sources.OneSrcImmediate.Src1, CurrentDeferredFlags.Sources.OneSrcImmediate.Imm);
-    break;
-  case FlagsGenerationType::TYPE_ASHRI:
-    CalculateFlags_SignShiftRightImmediate(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res,
-                                           CurrentDeferredFlags.Sources.OneSrcImmediate.Src1, CurrentDeferredFlags.Sources.OneSrcImmediate.Imm);
-    break;
-  case FlagsGenerationType::TYPE_BEXTR: CalculateFlags_BEXTR(CurrentDeferredFlags.Res); break;
-  case FlagsGenerationType::TYPE_BLSI: CalculateFlags_BLSI(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res); break;
-  case FlagsGenerationType::TYPE_BLSMSK:
-    CalculateFlags_BLSMSK(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res, CurrentDeferredFlags.Sources.OneSource.Src1);
-    break;
-  case FlagsGenerationType::TYPE_BLSR:
-    CalculateFlags_BLSR(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res, CurrentDeferredFlags.Sources.OneSource.Src1);
-    break;
-  case FlagsGenerationType::TYPE_POPCOUNT: CalculateFlags_POPCOUNT(CurrentDeferredFlags.Res); break;
-  case FlagsGenerationType::TYPE_BZHI:
-    CalculateFlags_BZHI(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res, CurrentDeferredFlags.Sources.OneSource.Src1);
-    break;
-  case FlagsGenerationType::TYPE_ZCNT: CalculateFlags_ZCNT(CurrentDeferredFlags.SrcSize, CurrentDeferredFlags.Res); break;
-  case FlagsGenerationType::TYPE_RDRAND: CalculateFlags_RDRAND(CurrentDeferredFlags.Res); break;
-  case FlagsGenerationType::TYPE_NONE:
-  default: ERROR_AND_DIE_FMT("Unhandled flags type {}", CurrentDeferredFlags.Type);
-  }
-
-  // Done calculating
-  CurrentDeferredFlags.Type = FlagsGenerationType::TYPE_NONE;
-
+void OpDispatchBuilder::CalculateDeferredFlags() {
  if (NZCVDirty && CachedNZCV) {
    _StoreNZCV(CachedNZCV);
  }
@@ -383,15 +322,14 @@ Ref OpDispatchBuilder::CalculateFlags_SBB(uint8_t SrcSize, Ref Src1, Ref Src2) {
  } else {
    // Zero extend for correct comparison behaviour with Src1 = 0xffff.
    Src1 = _Bfe(OpSize, SrcSize * 8, 0, Src1);
+    Src2 = _Bfe(OpSize, SrcSize * 8, 0, Src2);

-    auto CF = GetRFLAG(FEXCore::X86State::RFLAG_CF_RAW_LOC);
-    auto Src1MinusCF = _Sub(OpSize, Src1, CF);
+    auto Src2PlusCF = _Adc(OpSize, _Constant(0), Src2);

-    Res = _Sub(OpSize, Src1MinusCF, Src2);
+    Res = _Sub(OpSize, Src1, Src2PlusCF);
    Res = _Bfe(OpSize, SrcSize * 8, 0, Res);

-    // Need to zero-extend for correct comparisons below
-    auto SelectCF = _Select(FEXCore::IR::COND_ULT, Src1MinusCF, Res, One, Zero);
+    auto SelectCF = _Select(FEXCore::IR::COND_ULT, Src1, Src2PlusCF, One, Zero);

    SetNZ_ZeroCV(SrcSize, Res);
    SetRFLAG<FEXCore::X86State::RFLAG_CF_RAW_LOC>(SelectCF);
@@ -459,65 +397,42 @@ Ref OpDispatchBuilder::CalculateFlags_ADD(uint8_t SrcSize, Ref Src1, Ref Src2, b

 void OpDispatchBuilder::CalculateFlags_MUL(uint8_t SrcSize, Ref Res, Ref High) {
  HandleNZCVWrite();
+  InvalidatePF_AF();

-  // PF/AF/ZF/SF
-  // Undefined
-  {
-    _InvalidateFlags(1 << X86State::RFLAG_PF_RAW_LOC);
-    _InvalidateFlags(1 << X86State::RFLAG_AF_RAW_LOC);
-  }
+  // CF and OF are set if the result of the operation can't be fit in to the destination register
+  // If the value can fit then the top bits will be zero
+  auto SignBit = _Sbfe(OpSize::i64Bit, 1, SrcSize * 8 - 1, Res);
+  _SubNZCV(OpSize::i64Bit, High, SignBit);

-  // CF/OF
-  {
-    // CF and OF are set if the result of the operation can't be fit in to the destination register
-    // If the value can fit then the top bits will be zero
-    auto SignBit = _Sbfe(OpSize::i64Bit, 1, SrcSize * 8 - 1, Res);
-    _SubNZCV(OpSize::i64Bit, High, SignBit);
-
-    // If High = SignBit, then sets to nZcv. Else sets to nzCV. Since SF/ZF
-    // undefined, this does what we need.
-    auto Zero = _Constant(0);
-    _CondAddNZCV(OpSize::i64Bit, Zero, Zero, CondClassType {COND_EQ}, 0x3 /* nzCV */);
-  }
+  // If High = SignBit, then sets to nZcv. Else sets to nzCV. Since SF/ZF
+  // undefined, this does what we need.
+  auto Zero = _Constant(0);
+  _CondAddNZCV(OpSize::i64Bit, Zero, Zero, CondClassType {COND_EQ}, 0x3 /* nzCV */);
 }

 void OpDispatchBuilder::CalculateFlags_UMUL(Ref High) {
  HandleNZCVWrite();
+  InvalidatePF_AF();

  auto Zero = _Constant(0);
  OpSize Size = IR::SizeToOpSize(GetOpSize(High));

-  // AF/SF/PF/ZF
-  // Undefined
-  {
-    _InvalidateFlags(1 << X86State::RFLAG_PF_RAW_LOC);
-    _InvalidateFlags(1 << X86State::RFLAG_AF_RAW_LOC);
-  }
+  // CF and OF are set if the result of the operation can't be fit in to the destination register
+  // The result register will be all zero if it can't fit due to how multiplication behaves
+  _SubNZCV(Size, High, Zero);

-  // CF/OF
-  {
-    // CF and OF are set if the result of the operation can't be fit in to the destination register
-    // The result register will be all zero if it can't fit due to how multiplication behaves
-    _SubNZCV(Size, High, Zero);
-
-    // If High = 0, then sets to nZcv. Else sets to nzCV. Since SF/ZF undefined,
-    // this does what we need.
-    _CondAddNZCV(Size, Zero, Zero, CondClassType {COND_EQ}, 0x3 /* nzCV */);
-  }
+  // If High = 0, then sets to nZcv. Else sets to nzCV. Since SF/ZF undefined,
+  // this does what we need.
+  _CondAddNZCV(Size, Zero, Zero, CondClassType {COND_EQ}, 0x3 /* nzCV */);
 }

 void OpDispatchBuilder::CalculateFlags_Logical(uint8_t SrcSize, Ref Res, Ref Src1, Ref Src2) {
-  // AF
-  // Undefined
-  _InvalidateFlags(1 << X86State::RFLAG_AF_RAW_LOC);
+  InvalidateAF();

-  if (SrcSize >= 4) {
-    HandleNZ00Write();
-    CalculatePF(_AndWithFlags(IR::SizeToOpSize(SrcSize), Res, Res));
-  } else {
-    SetNZ_ZeroCV(SrcSize, Res);
-    CalculatePF(Res);
-  }
+  CalculatePF(Res);
+
+  // SF/ZF/CF/OF
+  SetNZ_ZeroCV(SrcSize, Res);
 }

 void OpDispatchBuilder::CalculateFlags_ShiftLeftImmediate(uint8_t SrcSize, Ref UnmaskedRes, Ref Src1, uint64_t Shift) {
@@ -532,19 +447,17 @@ void OpDispatchBuilder::CalculateFlags_ShiftLeftImmediate(uint8_t SrcSize, Ref U

  // CF
  {
-    // Extract the last bit shifted in to CF
+    // Extract the last bit shifted in to CF. Shift is already masked, but for
+    // 8/16-bit it might be >= SrcSizeBits, in which case CF is cleared. There's
+    // nothing to do in that case since we already cleared CF above.
    auto SrcSizeBits = SrcSize * 8;
-    if (SrcSizeBits < Shift) {
-      Shift &= (SrcSizeBits - 1);
+    if (Shift < SrcSizeBits) {
+      SetRFLAG<FEXCore::X86State::RFLAG_CF_RAW_LOC>(Src1, SrcSizeBits - Shift, true);
    }
-    SetRFLAG<FEXCore::X86State::RFLAG_CF_RAW_LOC>(Src1, SrcSizeBits - Shift, true);
  }

  CalculatePF(UnmaskedRes);
-
-  // AF
-  // Undefined
-  _InvalidateFlags(1 << X86State::RFLAG_AF_RAW_LOC);
+  InvalidateAF();

  // OF
  // In the case of left shift. OF is only set from the result of <Top Source Bit> XOR <Top Result Bit>
@@ -571,10 +484,7 @@ void OpDispatchBuilder::CalculateFlags_SignShiftRightImmediate(uint8_t SrcSize,
  }

  CalculatePF(Res);
-
-  // AF
-  // Undefined
-  _InvalidateFlags(1 << X86State::RFLAG_AF_RAW_LOC);
+  InvalidateAF();

  // OF
  // Only defined when Shift is 1 else undefined. Only is set if the top bit was set to 1 when
@@ -594,10 +504,7 @@ void OpDispatchBuilder::CalculateFlags_ShiftRightImmediateCommon(uint8_t SrcSize
  }

  CalculatePF(Res);
-
-  // AF
-  // Undefined
-  _InvalidateFlags(1 << X86State::RFLAG_AF_RAW_LOC);
+  InvalidateAF();
 }

 void OpDispatchBuilder::CalculateFlags_ShiftRightImmediate(uint8_t SrcSize, Ref Res, Ref Src1, uint64_t Shift) {
@@ -643,8 +550,7 @@ void OpDispatchBuilder::CalculateFlags_BEXTR(Ref Src) {
  // ZF is set properly. CF and OF are defined as being set to zero. SF, PF, and
  // AF are undefined.
  SetNZ_ZeroCV(GetOpSize(Src), Src);
-
-  _InvalidateFlags((1UL << X86State::RFLAG_PF_RAW_LOC) | (1UL << X86State::RFLAG_AF_RAW_LOC));
+  InvalidatePF_AF();
 }

 void OpDispatchBuilder::CalculateFlags_BLSI(uint8_t SrcSize, Ref Result) {
@@ -654,17 +560,14 @@ void OpDispatchBuilder::CalculateFlags_BLSI(uint8_t SrcSize, Ref Result) {
  //
  // ZF/SF/OF set as usual.
  SetNZ_ZeroCV(SrcSize, Result);
+  InvalidatePF_AF();

  auto CFOp = GetRFLAG(X86State::RFLAG_ZF_RAW_LOC, true /* Invert */);
  SetRFLAG<X86State::RFLAG_CF_RAW_LOC>(CFOp);
-
-  // PF/AF undefined
-  _InvalidateFlags((1UL << X86State::RFLAG_PF_RAW_LOC) | (1UL << X86State::RFLAG_AF_RAW_LOC));
 }

 void OpDispatchBuilder::CalculateFlags_BLSMSK(uint8_t SrcSize, Ref Result, Ref Src) {
-  // PF/AF undefined
-  _InvalidateFlags((1UL << X86State::RFLAG_PF_RAW_LOC) | (1UL << X86State::RFLAG_AF_RAW_LOC));
+  InvalidatePF_AF();

  // CF set according to the Src
  auto Zero = _Constant(0);
@@ -684,9 +587,7 @@ void OpDispatchBuilder::CalculateFlags_BLSR(uint8_t SrcSize, Ref Result, Ref Src

  SetNZ_ZeroCV(SrcSize, Result);
  SetRFLAG<X86State::RFLAG_CF_RAW_LOC>(CFOp);
-
-  // PF/AF undefined
-  _InvalidateFlags((1UL << X86State::RFLAG_PF_RAW_LOC) | (1UL << X86State::RFLAG_AF_RAW_LOC));
+  InvalidatePF_AF();
 }

 void OpDispatchBuilder::CalculateFlags_POPCOUNT(Ref Result) {
@@ -698,9 +599,7 @@ void OpDispatchBuilder::CalculateFlags_POPCOUNT(Ref Result) {
 }

 void OpDispatchBuilder::CalculateFlags_BZHI(uint8_t SrcSize, Ref Result, Ref Src) {
-  // PF/AF undefined
-  _InvalidateFlags((1UL << X86State::RFLAG_PF_RAW_LOC) | (1UL << X86State::RFLAG_AF_RAW_LOC));
-
+  InvalidatePF_AF();
  SetNZ_ZeroCV(SrcSize, Result);
  SetRFLAG<X86State::RFLAG_CF_RAW_LOC>(Src);
 }
@@ -27,8 +27,8 @@ std::array<X86InstInfo, MAX_VEX_TABLE_SIZE> VEXTableOps = []() consteval {
    {OPD(1, 0b10, 0x11), 1, X86InstInfo{"VMOVSS",    TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_DST | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(1, 0b11, 0x11), 1, X86InstInfo{"VMOVSD",    TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_DST | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(1, 0b00, 0x12), 1, X86InstInfo{"VMOVLPS",   TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_MEM_ONLY | FLAGS_XMM_FLAGS | FLAGS_VEX_1ST_SRC, 0, nullptr}},
-    {OPD(1, 0b01, 0x12), 1, X86InstInfo{"VMOVLPD",   TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_MEM_ONLY | FLAGS_XMM_FLAGS | FLAGS_VEX_1ST_SRC, 0, nullptr}},
+    {OPD(1, 0b00, 0x12), 1, X86InstInfo{"VMOVLPS",   TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS | FLAGS_VEX_1ST_SRC, 0, nullptr}},
+    {OPD(1, 0b01, 0x12), 1, X86InstInfo{"VMOVLPD",   TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS | FLAGS_VEX_1ST_SRC, 0, nullptr}},
    {OPD(1, 0b10, 0x12), 1, X86InstInfo{"VMOVSLDUP", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(1, 0b11, 0x12), 1, X86InstInfo{"VMOVDDUP",  TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},

@@ -282,7 +282,7 @@ std::array<X86InstInfo, MAX_VEX_TABLE_SIZE> VEXTableOps = []() consteval {
    {OPD(2, 0b01, 0x0E), 1, X86InstInfo{"VTESTPS", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(2, 0b01, 0x0F), 1, X86InstInfo{"VTESTPD", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0x13), 1, X86InstInfo{"VCVTPH2PS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0x13), 1, X86InstInfo{"VCVTPH2PS", TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_64BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(2, 0b01, 0x16), 1, X86InstInfo{"VPERMPS", TYPE_INST, GenFlagsSameSize(SIZE_256BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(2, 0b01, 0x17), 1, X86InstInfo{"VPTEST", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},

@@ -343,46 +343,46 @@ std::array<X86InstInfo, MAX_VEX_TABLE_SIZE> VEXTableOps = []() consteval {
    {OPD(2, 0b01, 0x8C), 1, X86InstInfo{"VPMASKMOV", TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_32BIT) | FLAGS_MODRM | FLAGS_SF_MOD_MEM_ONLY | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(2, 0b01, 0x8E), 1, X86InstInfo{"VPMASKMOV", TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_32BIT) | FLAGS_MODRM | FLAGS_SF_MOD_MEM_ONLY | FLAGS_SF_MOD_DST | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0x90), 1, X86InstInfo{"VPGATHERDD/Q", TYPE_UNDEC, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
-    {OPD(2, 0b01, 0x91), 1, X86InstInfo{"VPGATHERQD/Q", TYPE_UNDEC, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
-    {OPD(2, 0b01, 0x92), 1, X86InstInfo{"VGATHERDPS/D", TYPE_UNDEC, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
-    {OPD(2, 0b01, 0x93), 1, X86InstInfo{"VGATHERQPS/D", TYPE_UNDEC, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x90), 1, X86InstInfo{"VPGATHERDD/Q", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x91), 1, X86InstInfo{"VPGATHERQD/Q", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x92), 1, X86InstInfo{"VGATHERDPS/D", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x93), 1, X86InstInfo{"VGATHERQPS/D", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_2ND_SRC | FLAGS_VEX_VSIB | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0x96), 1, X86InstInfo{"VFMADDSUB132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x97), 1, X86InstInfo{"VFMSUBADD132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0x96), 1, X86InstInfo{"VFMADDSUB132", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x97), 1, X86InstInfo{"VFMSUBADD132", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0x98), 1, X86InstInfo{"VFMADD132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x99), 1, X86InstInfo{"VFMADD132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x9A), 1, X86InstInfo{"VFMSUB132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x9B), 1, X86InstInfo{"VFMSUB132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x9C), 1, X86InstInfo{"VFNMADD132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x9D), 1, X86InstInfo{"VFNMADD132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x9E), 1, X86InstInfo{"VFNMSUB132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0x9F), 1, X86InstInfo{"VFNMSUB132", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0x98), 1, X86InstInfo{"VFMADD132", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x99), 1, X86InstInfo{"VFMADD132_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x9A), 1, X86InstInfo{"VFMSUB132", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x9B), 1, X86InstInfo{"VFMSUB132_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x9C), 1, X86InstInfo{"VFNMADD132", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x9D), 1, X86InstInfo{"VFNMADD132_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x9E), 1, X86InstInfo{"VFNMSUB132", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0x9F), 1, X86InstInfo{"VFNMSUB132_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0xA8), 1, X86InstInfo{"VFMADD213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xA9), 1, X86InstInfo{"VFMADD213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xAA), 1, X86InstInfo{"VFMSUB213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xAB), 1, X86InstInfo{"VFMSUB213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xAC), 1, X86InstInfo{"VFNMADD213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xAD), 1, X86InstInfo{"VFNMADD213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xAE), 1, X86InstInfo{"VFNMSUB213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xAF), 1, X86InstInfo{"VFNMSUB213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0xA8), 1, X86InstInfo{"VFMADD213", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xA9), 1, X86InstInfo{"VFMADD213_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xAA), 1, X86InstInfo{"VFMSUB213", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xAB), 1, X86InstInfo{"VFMSUB213_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xAC), 1, X86InstInfo{"VFNMADD213", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xAD), 1, X86InstInfo{"VFNMADD213_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xAE), 1, X86InstInfo{"VFNMSUB213", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xAF), 1, X86InstInfo{"VFNMSUB213_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0xB8), 1, X86InstInfo{"VFMADD231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xB9), 1, X86InstInfo{"VFMADD231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xBA), 1, X86InstInfo{"VFMSUB231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xBB), 1, X86InstInfo{"VFMSUB231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xBC), 1, X86InstInfo{"VFNMADD231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xBD), 1, X86InstInfo{"VFNMADD231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xBE), 1, X86InstInfo{"VFNMSUB231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xBF), 1, X86InstInfo{"VFNMSUB231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0xB8), 1, X86InstInfo{"VFMADD231", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xB9), 1, X86InstInfo{"VFMADD231_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xBA), 1, X86InstInfo{"VFMSUB231", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xBB), 1, X86InstInfo{"VFMSUB231_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xBC), 1, X86InstInfo{"VFNMADD231", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xBD), 1, X86InstInfo{"VFNMADD231_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xBE), 1, X86InstInfo{"VFNMSUB231", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xBF), 1, X86InstInfo{"VFNMSUB231_S", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0xA6), 1, X86InstInfo{"VFMADDSUB213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xA7), 1, X86InstInfo{"VFMSUBADD213", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0xA6), 1, X86InstInfo{"VFMADDSUB213", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xA7), 1, X86InstInfo{"VFMSUBADD213", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

-    {OPD(2, 0b01, 0xB6), 1, X86InstInfo{"VFMADDSUB231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(2, 0b01, 0xB7), 1, X86InstInfo{"VFMSUBADD231", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(2, 0b01, 0xB6), 1, X86InstInfo{"VFMADDSUB231", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
+    {OPD(2, 0b01, 0xB7), 1, X86InstInfo{"VFMSUBADD231", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},

    {OPD(2, 0b01, 0xDB), 1, X86InstInfo{"VAESIMC", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},
    {OPD(2, 0b01, 0xDC), 1, X86InstInfo{"VAESENC", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 0, nullptr}},
@@ -433,7 +433,7 @@ std::array<X86InstInfo, MAX_VEX_TABLE_SIZE> VEXTableOps = []() consteval {

    {OPD(3, 0b01, 0x18), 1, X86InstInfo{"VINSERTF128", TYPE_INST, GenFlagsSameSize(SIZE_256BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 1, nullptr}},
    {OPD(3, 0b01, 0x19), 1, X86InstInfo{"VEXTRACTF128", TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_256BIT) | FLAGS_MODRM | FLAGS_SF_MOD_DST | FLAGS_XMM_FLAGS, 1, nullptr}},
-    {OPD(3, 0b01, 0x1D), 1, X86InstInfo{"VCVTPS2PH", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(3, 0b01, 0x1D), 1, X86InstInfo{"VCVTPS2PH", TYPE_INST, GenFlagsSizes(SIZE_64BIT, SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_DST | FLAGS_XMM_FLAGS, 1, nullptr}},

    {OPD(3, 0b01, 0x20), 1, X86InstInfo{"VPINSRB", TYPE_INST, GenFlagsDstSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS | FLAGS_SF_SRC_GPR, 1, nullptr}},
    {OPD(3, 0b01, 0x21), 1, X86InstInfo{"VINSERTPS", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 1, nullptr}},
@@ -452,33 +452,33 @@ std::array<X86InstInfo, MAX_VEX_TABLE_SIZE> VEXTableOps = []() consteval {
    {OPD(3, 0b01, 0x4B), 1, X86InstInfo{"VBLENDVPD", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 1, nullptr}},
    {OPD(3, 0b01, 0x4C), 1, X86InstInfo{"VPBLENDVB", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_VEX_1ST_SRC | FLAGS_XMM_FLAGS, 1, nullptr}},

-    {OPD(3, 0b01, 0x5C), 1, X86InstInfo{"VFMADDSUBPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x5D), 1, X86InstInfo{"VFMADDSUBPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x5E), 1, X86InstInfo{"VFMSUBADDPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x5F), 1, X86InstInfo{"VFMSUBADDPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(3, 0b01, 0x5C), 1, X86InstInfo{"VFMADDSUBPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x5D), 1, X86InstInfo{"VFMADDSUBPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x5E), 1, X86InstInfo{"VFMSUBADDPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x5F), 1, X86InstInfo{"VFMSUBADDPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4

    {OPD(3, 0b01, 0x60), 1, X86InstInfo{"VPCMPESTRM", TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_32BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 1, nullptr}},
    {OPD(3, 0b01, 0x61), 1, X86InstInfo{"VPCMPESTRI", TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_32BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 1, nullptr}},
    {OPD(3, 0b01, 0x62), 1, X86InstInfo{"VPCMPISTRM", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 1, nullptr}},
    {OPD(3, 0b01, 0x63), 1, X86InstInfo{"VPCMPISTRI", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 1, nullptr}},

-    {OPD(3, 0b01, 0x68), 1, X86InstInfo{"VFMADDPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x69), 1, X86InstInfo{"VFMADDPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x6A), 1, X86InstInfo{"VFMADDSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x6B), 1, X86InstInfo{"VFMADDSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x6C), 1, X86InstInfo{"VFMSUBPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x6D), 1, X86InstInfo{"VFMSUBPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x6E), 1, X86InstInfo{"VFMSUBSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x6F), 1, X86InstInfo{"VFMSUBSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(3, 0b01, 0x68), 1, X86InstInfo{"VFMADDPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x69), 1, X86InstInfo{"VFMADDPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x6A), 1, X86InstInfo{"VFMADDSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x6B), 1, X86InstInfo{"VFMADDSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x6C), 1, X86InstInfo{"VFMSUBPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x6D), 1, X86InstInfo{"VFMSUBPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x6E), 1, X86InstInfo{"VFMSUBSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x6F), 1, X86InstInfo{"VFMSUBSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4

-    {OPD(3, 0b01, 0x78), 1, X86InstInfo{"VFNMADDPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x79), 1, X86InstInfo{"VFNMADDPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x7A), 1, X86InstInfo{"VFNMADDSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x7B), 1, X86InstInfo{"VFNMADDSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x7C), 1, X86InstInfo{"VFNMSUBPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x7D), 1, X86InstInfo{"VFNMSUBPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x7E), 1, X86InstInfo{"VFNMSUBSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(3, 0b01, 0x7F), 1, X86InstInfo{"VFNMSUBSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(3, 0b01, 0x78), 1, X86InstInfo{"VFNMADDPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x79), 1, X86InstInfo{"VFNMADDPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x7A), 1, X86InstInfo{"VFNMADDSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x7B), 1, X86InstInfo{"VFNMADDSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x7C), 1, X86InstInfo{"VFNMSUBPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x7D), 1, X86InstInfo{"VFNMSUBPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x7E), 1, X86InstInfo{"VFNMSUBSS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4
+    {OPD(3, 0b01, 0x7F), 1, X86InstInfo{"VFNMSUBSD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}}, ///< FMA4

    {OPD(3, 0b01, 0xDF), 1, X86InstInfo{"VAESKEYGENASSIST", TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 1, nullptr}},

@@ -27,7 +27,7 @@ constexpr uint32_t FLAG_LOCK          = (1 << 2);
 constexpr uint32_t FLAG_LEGACY_PREFIX = (1 << 3);
 constexpr uint32_t FLAG_REX_PREFIX    = (1 << 4);
 constexpr uint32_t FLAG_VSIB_BYTE     = (1 << 5);
-// Hole where 1 << 6 is
+constexpr uint32_t FLAG_OPTION_AVX_W  = (1 << 6);
 constexpr uint32_t FLAG_REX_WIDENING  = (1 << 7);
 constexpr uint32_t FLAG_REX_XGPR_B    = (1 << 8);
 constexpr uint32_t FLAG_REX_XGPR_X    = (1 << 9);
@@ -137,6 +137,10 @@ struct DecodedOperand {
  bool IsSIB() const {
    return Type == OpType::SIB;
  }
+  uint64_t Literal() const {
+    LOGMAN_THROW_A_FMT(IsLiteral(), "Precondition: must be a literal");
+    return Data.Literal.Value;
+  }

  union TypeUnion {
    struct GPRType {
@@ -373,7 +373,7 @@ struct ThunkHandler_impl final : public ThunkHandler {
    Thread = _Thread;
  }

-  void AppendThunkDefinitions(const fextl::vector<FEXCore::IR::ThunkDefinition>& Definitions) override {
+  void AppendThunkDefinitions(std::span<const FEXCore::IR::ThunkDefinition> Definitions) override {
    for (auto& Definition : Definitions) {
      Thunks.emplace(Definition.Sum, Definition.ThunkFunction);
    }
@@ -35,6 +35,6 @@ public:

  static fextl::unique_ptr<ThunkHandler> Create();

-  virtual void AppendThunkDefinitions(const fextl::vector<FEXCore::IR::ThunkDefinition>& Definitions) = 0;
+  virtual void AppendThunkDefinitions(std::span<const FEXCore::IR::ThunkDefinition> Definitions) = 0;
 };
 }; // namespace FEXCore
@@ -83,7 +83,7 @@ struct AOTIRCacheEntry {
  AOTIRInlineIndex* Array;
  void* FilePtr;
  size_t Size;
-  std::unique_ptr<FEXCore::HLE::SourcecodeMap> SourcecodeMap;
+  fextl::unique_ptr<FEXCore::HLE::SourcecodeMap> SourcecodeMap;
  fextl::string FileId;
  fextl::string Filename;
  bool ContainsCode;
@@ -168,7 +168,7 @@
        "SwitchGen": false,
        "JITDispatchOverride": "NoOp"
      },
-      "IRHeader SSA:$Blocks, u64:$OriginalRIP, u32:$BlockCount, u32:$NumHostInstructions": {
+      "IRHeader SSA:$Blocks, u64:$OriginalRIP, u32:$BlockCount, u32:$NumHostInstructions, i1:$HasX87{false}": {
        "SwitchGen": false,
        "JITDispatchOverride": "NoOp"
      },
@@ -226,11 +226,22 @@
        "DestSize": "4"
      },

-      "SetRoundingMode GPR:$RoundMode": {
+      "SetRoundingMode GPR:$RoundMode, i1:$SetDAZ, GPR:$MXCSR": {
        "Desc": ["Sets the current rounding mode options for the thread"
                ],
        "HasSideEffects": true
      },
+      "GPR = PushRoundingMode u8:$RoundMode": {
+        "Desc": ["Override the current rounding mode options for the thread, returning old FPCR"
+                ],
+        "DestSize": "8",
+        "HasSideEffects": true
+      },
+      "PopRoundingMode GPR:$FPCR": {
+        "Desc": ["Resets rounding mode after PushRoundingMode operation"
+                ],
+        "HasSideEffects": true
+      },
      "Print SSA:$Value": {
        "HasSideEffects": true,
        "Desc": ["Debug operation that prints an SSA value to the console",
@@ -275,7 +286,7 @@
        "Desc": ["Exits the current JIT function with a target RIP"
                ],
        "HasSideEffects": true,
-        "DestSize": "GetOpSize(_NewRIP)"
+        "DestSize": "GetOpSize(NewRIP)"
      },
      "Break BreakDefinition:$Reason": {
        "HasSideEffects": true
@@ -478,24 +489,6 @@
        "DestSize": "8"
      },

-      "GPR = LoadFlag u32:$Flag": {
-        "Desc": ["Loads an x86-64 flag from the context object",
-                 "Specialized to allow flexible implementation of flag handling"
-                ],
-        "DestSize": "1"
-      },
-
-      "StoreFlag GPR:$Value, u32:$Flag": {
-        "HasSideEffects": true,
-        "Desc": ["Stores 1-bit of the flag in to the specified x86-64 flag",
-                 "Specialized to allow flexible implementation of flag handling"
-                ],
-        "DestSize": "1"
-      },
-
-      "GPR = GetHostFlag GPR:$Value, u8:$Flag": {
-      },
-
      "SSA = LoadMem RegisterClass:$Class, u8:#Size, GPR:$Addr, GPR:$Offset, u8:$Align, MemOffsetType:$OffsetType, u8:$OffsetScale": {
        "DestSize": "Size"
      },
@@ -545,6 +538,36 @@
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / ElementSize"
      },
+      "FPR = VLoadVectorGatherMasked u8:#RegisterSize, u8:#ElementSize, FPR:$Incoming, FPR:$Mask, GPR:$AddrBase, FPR:$VectorIndexLow, FPR:$VectorIndexHigh, u8:$VectorIndexElementSize, u8:$OffsetScale, u8:$DataElementOffsetStart, u8:$IndexElementOffsetStart": {
+        "Desc": [
+          "Does a masked load similar to VPGATHERD* where the upper bit of each element",
+          "determines whether or not that element will be loaded from memory.",
+          "Most of VSIB encoding is passed directly through to the IR operation."
+        ],
+        "TiedSource": 0,
+        "ImplicitFlagClobber": true,
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "EmitValidation": [
+          "$VectorIndexElementSize == OpSize::i32Bit || $VectorIndexElementSize == OpSize::i64Bit"
+        ]
+      },
+      "FPR = VLoadVectorGatherMaskedQPS u8:#RegisterSize, u8:#ElementSize, FPR:$Incoming, FPR:$MaskReg, GPR:$AddrBase, FPR:$VectorIndexLow, FPR:$VectorIndexHigh, u8:$OffsetScale": {
+        "Desc": [
+          "Does a masked load similar to VPGATHERQPS where the upper bit of each element",
+          "determines whether or not that element will be loaded from memory.",
+          "Most of VSIB encoding is passed directly through to the IR operation.",
+          "Only supports the case of 32-bit data element sizes from 64-bit addresses"
+        ],
+        "TiedSource": 0,
+        "ImplicitFlagClobber": true,
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "EmitValidation": [
+          "ElementSize == OpSize::i32Bit",
+          "RegisterSize != FEXCore::IR::OpSize::i256Bit && \"What does 256-bit mean in this context?\""
+        ]
+      },
      "FPR = VLoadVectorElement u8:#RegisterSize, u8:#ElementSize, FPR:$DstSrc, u8:$Index, GPR:$Addr": {
        "Desc": ["Does a memory load to a single element of a vector.",
                 "Leaves the rest of the vector's data intact.",
@@ -625,10 +648,46 @@
        "Desc": ["Does a cacheline prefetch operation"
                ],
        "EmitValidation": [
-          "_CacheLevel > 0 && _CacheLevel < 4"
+          "CacheLevel > 0 && CacheLevel < 4"
        ],
        "HasSideEffects": true,
        "DestSize": "8"
+      },
+      "VStoreNonTemporal u8:#RegisterSize, FPR:$Value, GPR:$Addr, i8:$Offset": {
+        "Desc": ["Does a non-temporal memory store of a vector.",
+                 "Matches arm64 SVE stnt1b semantics.",
+                 "Specifically weak-memory model ordered to match x86 non-temporal stores."
+        ],
+        "HasSideEffects": true,
+        "DestSize": "RegisterSize",
+        "EmitValidation": [
+          "Offset % RegisterSize == 0",
+          "RegisterSize == FEXCore::IR::OpSize::i128Bit || RegisterSize == FEXCore::IR::OpSize::i256Bit"
+        ]
+      },
+      "VStoreNonTemporalPair u8:#RegisterSize, FPR:$ValueLow, FPR:$ValueHigh, GPR:$Addr, i8:$Offset": {
+        "Desc": ["Does a non-temporal memory store of two vector registers.",
+                 "Matches arm64 stnp semantics.",
+                 "Specifically weak-memory model ordered to match x86 non-temporal stores."
+        ],
+        "HasSideEffects": true,
+        "DestSize": "RegisterSize",
+        "EmitValidation": [
+          "Offset % RegisterSize == 0",
+          "RegisterSize == FEXCore::IR::OpSize::i128Bit"
+        ]
+      },
+      "FPR = VLoadNonTemporal u8:#RegisterSize, GPR:$Addr, i8:$Offset": {
+        "Desc": ["Does a non-temporal memory load of a vector.",
+                 "Matches arm64 SVE ldnt1b semantics.",
+                 "Specifically weak-memory model ordered to match x86 non-temporal stores."
+        ],
+        "HasSideEffects": true,
+        "DestSize": "RegisterSize",
+        "EmitValidation": [
+          "Offset % RegisterSize == 0",
+          "RegisterSize == FEXCore::IR::OpSize::i128Bit || RegisterSize == FEXCore::IR::OpSize::i256Bit"
+        ]
      }
    },
    "Atomic": {
@@ -1009,7 +1068,7 @@
        "DestSize": "Size",
        "EmitValidation": [
          "Size == FEXCore::IR::OpSize::i32Bit || Size == FEXCore::IR::OpSize::i64Bit",
-          "_Shift != ShiftType::ROR"
+          "Shift != ShiftType::ROR"
        ]
      },
      "GPR = AddWithFlags OpSize:#Size, GPR:$Src1, GPR:$Src2": {
@@ -1109,7 +1168,7 @@
        "DestSize": "Size",
        "EmitValidation": [
          "Size == FEXCore::IR::OpSize::i32Bit || Size == FEXCore::IR::OpSize::i64Bit",
-          "_Shift != ShiftType::ROR"
+          "Shift != ShiftType::ROR"
        ]
      },
      "GPR = SubWithFlags OpSize:#Size, GPR:$Src1, GPR:$Src2": {
@@ -1394,7 +1453,7 @@
        "DestSize": "ResultSize",
        "ImplicitFlagClobber": true,
        "EmitValidation": [
-          "_CompareSize == FEXCore::IR::OpSize::i32Bit || _CompareSize == FEXCore::IR::OpSize::i64Bit || _CompareSize == FEXCore::IR::OpSize::i128Bit",
+          "CompareSize == FEXCore::IR::OpSize::i32Bit || CompareSize == FEXCore::IR::OpSize::i64Bit || CompareSize == FEXCore::IR::OpSize::i128Bit",
          "ResultSize == FEXCore::IR::OpSize::i32Bit || ResultSize == FEXCore::IR::OpSize::i64Bit",
          "WalkFindRegClass($Cmp1) == WalkFindRegClass($Cmp2)"
        ]
@@ -1657,6 +1716,42 @@
                ],
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / ElementSize"
+      },
+      "FPR = VFMLAScalarInsert u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (Vector1 * Vector2) + Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
+      },
+      "FPR = VFMLSScalarInsert u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (Vector1 * Vector2) - Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
+      },
+      "FPR = VFNMLAScalarInsert u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (-Vector1 * Vector2) + Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
+      },
+      "FPR = VFNMLSScalarInsert u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (-Vector1 * Vector2) - Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
      }
    },
    "Vector": {
@@ -1829,6 +1924,18 @@
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / (ElementSize << 1)"
      },
+      "FPR = VSSHLL u8:#RegisterSize, u8:#ElementSize, FPR:$Vector, u8:$BitShift{0}": {
+        "Desc": "Sign extends elements from the source element size to the next size up",
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / (ElementSize << 1)"
+      },
+      "FPR = VSSHLL2 u8:#RegisterSize, u8:#ElementSize, FPR:$Vector, u8:$BitShift{0}": {
+        "Desc": ["Sign extends elements from the source element size to the next size up",
+                 "Source elements come from the upper half of the register"
+                ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / (ElementSize << 1)"
+      },
      "FPR = VUXTL u8:#RegisterSize, u8:#ElementSize, FPR:$Vector": {
        "Desc": "Zero extends elements from the source element size to the next size up",
        "DestSize": "RegisterSize",
@@ -1917,7 +2024,7 @@
        "NumElements": "RegisterSize / ElementSize"
      },

-      "FPR = VBic u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2": {
+      "FPR = VAndn u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2": {
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / ElementSize"
      },
@@ -2262,6 +2369,42 @@
      "FPR = VFCADD u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, u16:$Rotate": {
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / ElementSize"
+      },
+      "FPR = VFMLA u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (Vector1 * Vector2) + Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
+      },
+      "FPR = VFMLS u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (Vector1 * Vector2) - Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
+      },
+      "FPR = VFNMLA u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (-Vector1 * Vector2) + Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
+      },
+      "FPR = VFNMLS u8:#RegisterSize, u8:#ElementSize, FPR:$Vector1, FPR:$Vector2, FPR:$Addend": {
+        "Desc": [
+          "Dest = (-Vector1 * Vector2) - Addend",
+          "This explicitly matches x86 FMA semantics because ARM semantics are mind-bending."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / ElementSize",
+        "TiedSource": 2
      }
    },
    "Conv": {
@@ -2314,12 +2457,45 @@
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / DestElementSize"
      },
+
+      "FPR = VFCVTL2 u8:#RegisterSize, u8:#ElementSize, FPR:$Vector": {
+        "Desc": [
+          "Vector op: Converts float from source element size to destination size (fp32->fp64)",
+          "Selecting from the high half of the register."
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / (ElementSize << 1)",
+        "EmitValidation": [
+          "RegisterSize != FEXCore::IR::OpSize::i256Bit && \"What does 256-bit mean in this context?\""
+        ]
+      },
+      "FPR = VFCVTN2 u8:#RegisterSize, u8:#ElementSize, FPR:$VectorLower, FPR:$VectorUpper": {
+        "TiedSource": 0,
+        "Desc": [
+          "Vector op: Converts float from source element size and inserting in to the high bits.",
+          "Bottom half is untouched",
+          "Narrowing to the element size below what is passed in.",
+          "F64->F32, F32->F16"
+        ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / (ElementSize >> 1)",
+        "EmitValidation": [
+          "RegisterSize != FEXCore::IR::OpSize::i256Bit && \"What does 256-bit mean in this context?\""
+        ]
+      },
      "FPR = Vector_FToI u8:#RegisterSize, u8:#ElementSize, FPR:$Vector, RoundType:$Round": {
        "Desc": ["Vector op: Rounds float to integral",
                 "Rounding mode determined by argument"
                ],
        "DestSize": "RegisterSize",
        "NumElements": "RegisterSize / ElementSize"
+      },
+      "FPR = Vector_F64ToI32 u8:#RegisterSize, FPR:$Vector, RoundType:$Round, i1:$EnsureZeroUpperHalf": {
+        "Desc": ["Vector op: Rounds 64-bit float to 32-bit integral with round mode",
+                 "Matches CVTPD2DQ/CVTTPD2DQ behaviour"
+                ],
+        "DestSize": "RegisterSize",
+        "NumElements": "RegisterSize / FEXCore::IR::OpSize::i32Bit"
      }
    },
    "Crypto": {
@@ -2410,34 +2586,283 @@
      }
    },
    "F80": {
+      "GPR = SyncStackToSlow": {
+        "Desc": [
+          "Synchronizes the virtual stack environment to the physical registers.",
+          "Returns the current stack top."
+        ],
+        "X87": true,
+        "HasSideEffects": true,
+        "DestSize": 8
+      },
+      "StackForceSlow": {
+        "Desc": [
+          "Forces the slow path."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "InitStack": {
+        "Desc": [
+          "Initializes the stack by marking all tags as invalid and setting top to zero."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "IncStackTop": {
+        "Desc": [
+          "Increase stack top-pointer."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "DecStackTop": {
+        "Desc": [
+          "Decrease stack top-pointer."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "InvalidateStack u8:$StackLocation": {
+        "Desc": [
+          "Marks the value in TOP+$StackLocation as empty / invalid 0b11.",
+          "If the StackLocation is 0xff, we invalidate all locations."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "PushStack FPR:$X80Src, SSA:$OriginalValue, u8:$LoadSize, i1:$Float": {
+        "Desc": [
+          "Pushes the provided X80Src source on to the x87 stack.",
+          "Tracks OriginalValue as the original value of X80Src.",
+          "Opsize is 128bit for F80 values, 64-bit for low precision.",
+          "LoadSize the original load size, i.e. of size of OriginalValue.",
+          "Float: 80-bit, 64-bit, 32-bit",
+          "Int: 64-bit, 32-bit, 16-bit"
+        ],
+        "EmitValidation": [
+          "WalkFindRegClass($OriginalValue) == FPRClass || WalkFindRegClass($OriginalValue) == GPRClass"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "CopyPushStack u8:$StackLocation": {
+        "Desc": [
+          "Pushes an element already on the stack onto the top."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "StoreStackMemory GPR:$Addr, OpSize:$SourceSize, i1:$Float, u8:$StoreSize": {
+        "Desc": [
+          "Takes the top value off the x87 stack and stores it to memory.",
+          "SourceSize is 128bit for F80 values, 64-bit for low precision.",
+          "StoreSize is the store size for conversion:",
+          "Float: 80-bit, 64-bit, or 32-bit",
+          "Int: 64-bit, 32-bit, 16-bit"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "StoreStackToStack u8:$StackLocation": {
+        "Desc": [
+          "Takes the top value off the x87 stack and stores it to stack location TOP+StackLocation",
+          "Float: 80-bit, 64-bit, or 32-bit",
+          "Int: 64-bit, 32-bit, 16-bit"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "PopStackDestroy": {
+        "Desc": [
+          "Pops the top value off the stack but doesn't save it anywhere."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "FPR = ReadStackValue u8:$StackLocation": {
+        "Desc": [
+          "Reads a value off the stack at the offset"
+        ],
+        "DestSize": "16",
+        "X87": true
+      },
+      "GPR = StackValidTag u8:$StackLocation": {
+        "Desc": [
+          "Returns 1 if the value in location TOP+$StackLocation is valid, 0 otherwise."
+        ],
+        "DestSize": 4,
+        "X87": true
+      },
+      "F80AddStack u8:$SrcStack1, u8:$SrcStack2": {
+        "Desc": [
+          "Adds two stack locations together, storing the result in to the first stack location"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "F80AddValue u8:$SrcStack, FPR:$X80Src": {
+        "Desc": [
+          "Adds a operand value to a stack location. The result stored in to the stack location provided."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
      "FPR = F80Add FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80SubStack u8:$DstStack, u8:$SrcStack1, u8:$SrcStack2": {
+        "Desc": [
+          "Subtracts the value in stack location TOP+$SrcStack2 from the value in stack location TOP+$SrcStack1.",
+          "The result is stored in stack location TOP+$DstStack."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "F80SubValue u8:$SrcStack, FPR:$X80Src": {
+        "Desc": [
+          "Subtracts the value $X80Src from the value in stack location TOP+$SrcStack.",
+          "The result is stored in stack location TOP."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "F80SubRValue FPR:$X80Src, u8:$SrcStack": {
+        "Desc": [
+          "Subtracts the value in stack location TOP+$SrcStack from the value $X80Src.",
+          "The result is stored in stack location TOP."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
      "FPR = F80Sub FPR:$X80Src1, FPR:$X80Src2": {
+        "Desc": [
+          "Subtracts the value in $X80Src1 from the value in $X80Src2.",
+          "The result is returned.",
+          "`FPR = X80Src2 - X80Src1`"
+        ],
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80MulStack u8:$SrcStack1, u8:$SrcStack2": {
+        "Desc": [
+          "Multiplies two stack locations together, storing the result in to the first stack location"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "F80MulValue u8:$SrcStack, FPR:$X80Src": {
+        "Desc": [
+          "Multiplies a operand value to a stack location. The result stored in to the stack location provided."
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
      "FPR = F80Mul FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80DivStack u8:$DstStack, u8:$SrcStack1, u8:$SrcStack2": {
+        "Desc": [
+          "Divides the value in stack location TOP+$SrcStack1 by the value in stack location TOP+$SrcStack2.",
+          "The result is stored in stack location TOP+$DstStack.",
+          "`FPR|Stack[TOP+DstStack] = Stack[TOP+SrcStack1] / Stack[TOP+SrcStack2]`"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "F80DivValue u8:$SrcStack, FPR:$X80Src": {
+        "Desc": [
+          "Divides the value in stack location TOP+$SrcStack by the value $X80Src.",
+          "The result is stored in stack location TOP and returned.",
+          "`FPR|Stack[TOP] = Stack[TOP+SrcStack] / X80Src`"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "F80DivRValue FPR:$X80Src, u8:$SrcStack": {
+        "Desc": [
+          "Divides the value X80Src by the value in stack location TOP+$SrcStack.",
+          "The result is stored in stack location TOP.",
+          "`FPR|Stack[TOP] = X80Src / Stack[TOP+SrcStack]`"
+        ],
+        "HasSideEffects": true,
+        "X87": true
+      },
      "FPR = F80Div FPR:$X80Src1, FPR:$X80Src2": {
+        "Desc": [
+          "Divides the value in $X80Src1 by the value in $X80Src2.",
+          "The result is returned.",
+          "`FPR = X80Src1 / X80Src2`"
+        ],
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80StackXchange u8:$SrcStack": {
+        "Desc": [
+          "Exchanges the value at the top of the stack with the value at TOP+$SrcStack."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "FPR = F80StackChangeSign": {
+        "Desc": [
+          "Complements the sign bit of the value at the top of the stack.",
+          "Returns the new value at the top of the stack."
+        ],
+        "HasSideEffects": true,
+        "DestSize": "16",
+        "X87": true
+      },
+      "FPR = F80StackAbs": {
+        "Desc": [
+          "Clears the sign bit of the value at the top of the stack.",
+          "Returns the new value at the top of the stack."
+        ],
+        "HasSideEffects": true,
+        "DestSize": "16",
+        "X87": true
+      },
+      "F80PTANStack": {
+        "Desc": [
+          "Computes the approximate tangent of the source operand in register ST(0), stores the result in ST(0), and pushes a 1.0 onto the FPU register stack."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "FPR = F80ATANStack": {
+        "Desc": [
+          "Computes arctan(st1/st0) and stores it in st0. Then pops the stack."
+        ],
+        "DestSize": "16",
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80ATAN FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80FPREMStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80FPREM FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80FPREM1Stack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80FPREM1 FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80SCALEStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80SCALE FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
@@ -2458,10 +2883,21 @@
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80RoundStack": {
+        "Desc": [
+          "Replaces the value at the top of the stack with its nearest integral value."
+        ],
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80Round FPR:$X80Src": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80F2XM1Stack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80F2XM1 FPR:$X80Src": {
        "DestSize": "16",
        "JITDispatch": false
@@ -2470,18 +2906,38 @@
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80SINStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80SIN FPR:$X80Src": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80COSStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80COS FPR:$X80Src": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80SINCOSStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
+      "F80SQRTStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80SQRT FPR:$X80Src": {
        "DestSize": "16",
        "JITDispatch": false
      },
+      "F80XTRACTStack": {
+        "X87": true,
+        "HasSideEffects": true
+      },
      "FPR = F80XTRACT_EXP FPR:$X80Src": {
        "DestSize": "16",
        "JITDispatch": false
@@ -2490,8 +2946,32 @@
        "DestSize": "16",
        "JITDispatch": false
      },
-      "GPR = F80Cmp FPR:$X80Src1, FPR:$X80Src2, u32:$Flags": {
-        "Desc": ["Does a scalar unordered compare and stores the asked for flags in to a GPR",
+      "GPR = F80StackTest u8:$SrcStack": {
+        "Desc": [
+          "Does comparison between value in stack at TOP + SrcStack"
+        ],
+        "DestSize": "4",
+        "X87": true
+      },
+      "GPR = F80CmpStack u8:$SrcStack": {
+        "Desc": [
+          "Does a scalar unordered compare between the value at the top of the stack and the value in stack position TOP+$SrcStack and stores the flags in to a GPR",
+          "Ordering flag result is true if either float input is NaN"
+        ],
+        "DestSize": "4",
+        "X87": true
+      },
+      "GPR = F80CmpValue FPR:$X80Src": {
+        "Desc": [
+          "Does a scalar unordered compare between the value at the top of the stack and $X80Src and stores the asked for flags in to a GPR",
+          "Ordering flag result is true if either float input is NaN"
+        ],
+        "DestSize": "4",
+        "HasSideEffects": true,
+        "X87": true
+      },
+      "GPR = F80Cmp FPR:$X80Src1, FPR:$X80Src2": {
+        "Desc": ["Does a scalar unordered compare and stores the flags in to a GPR",
                 "Ordering flag result is true if either float input is NaN"
                ],
        "DestSize": "4",
@@ -2505,10 +2985,29 @@
        "DestSize": "16",
        "JITDispatch": false
      },
-
+      "FPR = F80FYL2XStack": {
+        "Desc": [
+          "Computes ST1 * log2(ST0)",
+          "Stores the result in ST1, and pops the top of the stack.",
+          "Returns the new value at the top of the stack, i.e. the result of the operation."
+        ],
+        "HasSideEffects": true,
+        "DestSize": "16",
+        "X87": true
+      },
      "FPR = F80FYL2X FPR:$X80Src1, FPR:$X80Src2": {
        "DestSize": "16",
        "JITDispatch": false
+      },
+      "F80VBSLStack u8:#RegisterSize, FPR:$VectorMask, u8:$SrcStack1, u8:$SrcStack2": {
+        "Desc": [
+          "Does a vector bitwise select.",
+          "If the bit in the field is 1 then the corresponding bit is pulled from VectorTrue",
+          "If the bit in the field is 0 then the corresponding bit is pulled from VectorFalse",
+          "Writes the result to the top of the stack."
+        ],
+        "X87": true,
+        "HasSideEffects": true
      }
    },
    "Backend": {
@@ -183,6 +183,14 @@ static void PrintArg(fextl::stringstream* out, [[maybe_unused]] const IRListView
        return "addsubpd_invert";
      case NamedVectorConstant::NAMED_VECTOR_PADDSUBPD_INVERT_UPPER:
        return "addsubpd_invert_upper";
+      case NamedVectorConstant::NAMED_VECTOR_PSUBADDPS_INVERT:
+        return "subaddps_invert";
+      case NamedVectorConstant::NAMED_VECTOR_PSUBADDPS_INVERT_UPPER:
+        return "subaddps_invert_upper";
+      case NamedVectorConstant::NAMED_VECTOR_PSUBADDPD_INVERT:
+        return "subaddpd_invert";
+      case NamedVectorConstant::NAMED_VECTOR_PSUBADDPD_INVERT_UPPER:
+        return "subaddpd_invert_upper";
      case NamedVectorConstant::NAMED_VECTOR_MOVMSKPS_SHIFT:
        return "movmskps_shift";
      case NamedVectorConstant::NAMED_VECTOR_AESKEYGENASSIST_SWIZZLE:
@@ -343,9 +343,9 @@ protected:
    return Ptr;
  }

-  virtual void SaveNZCV(IROps Op) {
-    // Overriden by dispatcher, stubbed for IR tests
-  }
+  // Overriden by dispatcher, stubbed for IR tests
+  virtual void RecordX87Use() {}
+  virtual void SaveNZCV(IROps Op) {}

  Ref CurrentWriteCursor = nullptr;

@@ -70,7 +70,7 @@ void PassManager::AddDefaultPasses(FEXCore::Context::ContextImpl* ctx) {
  FEX_CONFIG_OPT(DisablePasses, O0);

  if (!DisablePasses()) {
-    InsertPass(CreateContextLoadStoreElimination(ctx->HostFeatures.SupportsAVX));
+    InsertPass(CreateX87StackOptimizationPass());
    InsertPass(CreateDeadStoreElimination());
    InsertPass(CreateConstProp(ctx->HostFeatures.SupportsTSOImm9, &ctx->CPUID));
    InsertPass(CreateDeadFlagCalculationEliminination());